/wp-includes/query.php

<?php

/**

 * WordPress Query API

 *

 * The query API attempts to get which part of WordPress the user is on. It

 * also provides functionality for getting URL query information.

 *

 * @link http://codex.wordpress.org/The_Loop More information on The Loop.

 *

 * @package WordPress

 * @subpackage Query

 */



/**

 * Retrieve variable in the WP_Query class.

 *

 * @see WP_Query::get()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param string $var       The variable key to retrieve.

 * @param mixed  $default   Value to return if the query variable is not set. Default ''.

 * @return mixed

 */

function get_query_var( $var, $default = '' ) {

	global $wp_query;



	return $wp_query->get( $var, $default );

}



/**

 * Retrieve the currently-queried object. Wrapper for $wp_query->get_queried_object()

 *

 * @uses WP_Query::get_queried_object

 *

 * @since 3.1.0

 * @access public

 *

 * @return object

 */

function get_queried_object() {

	global $wp_query;

	return $wp_query->get_queried_object();

}



/**

 * Retrieve ID of the current queried object. Wrapper for $wp_query->get_queried_object_id()

 *

 * @uses WP_Query::get_queried_object_id()

 *

 * @since 3.1.0

 * @access public

 *

 * @return int

 */

function get_queried_object_id() {

	global $wp_query;

	return $wp_query->get_queried_object_id();

}



/**

 * Set query variable.

 *

 * @see WP_Query::set()

 * @since 2.2.0

 * @uses $wp_query

 *

 * @param string $var Query variable key.

 * @param mixed $value

 * @return null

 */

function set_query_var($var, $value) {

	global $wp_query;



	return $wp_query->set($var, $value);

}



/**

 * Set up The Loop with query parameters.

 *

 * This will override the current WordPress Loop and shouldn't be used more than

 * once. This must not be used within the WordPress Loop.

 *

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param string $query

 * @return array List of posts

 */

function query_posts($query) {

	$GLOBALS['wp_query'] = new WP_Query();

	return $GLOBALS['wp_query']->query($query);

}



/**

 * Destroy the previous query and set up a new query.

 *

 * This should be used after {@link query_posts()} and before another {@link

 * query_posts()}. This will remove obscure bugs that occur when the previous

 * wp_query object is not destroyed properly before another is set up.

 *

 * @since 2.3.0

 * @uses $wp_query

 */

function wp_reset_query() {

	$GLOBALS['wp_query'] = $GLOBALS['wp_the_query'];

	wp_reset_postdata();

}



/**

 * After looping through a separate query, this function restores

 * the $post global to the current post in the main query.

 *

 * @since 3.0.0

 * @uses $wp_query

 */

function wp_reset_postdata() {

	global $wp_query;



	if ( isset( $wp_query ) ) {

		$wp_query->reset_postdata();

	}

}



/*

 * Query type checks.

 */



/**

 * Is the query for an existing archive page?

 *

 * Month, Year, Category, Author, Post Type archive...

 *

 * @see WP_Query::is_archive()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_archive() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_archive();

}



/**

 * Is the query for an existing post type archive page?

 *

 * @see WP_Query::is_post_type_archive()

 * @since 3.1.0

 * @uses $wp_query

 *

 * @param mixed $post_types Optional. Post type or array of posts types to check against.

 * @return bool

 */

function is_post_type_archive( $post_types = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_post_type_archive( $post_types );

}



/**

 * Is the query for an existing attachment page?

 *

 * @see WP_Query::is_attachment()

 * @since 2.0.0

 * @uses $wp_query

 *

 * @param mixed $attachment Attachment ID, title, slug, or array of such.

 * @return bool

 */

function is_attachment( $attachment = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_attachment( $attachment );

}



/**

 * Is the query for an existing author archive page?

 *

 * If the $author parameter is specified, this function will additionally

 * check if the query is for one of the authors specified.

 *

 * @see WP_Query::is_author()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param mixed $author Optional. User ID, nickname, nicename, or array of User IDs, nicknames, and nicenames

 * @return bool

 */

function is_author( $author = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_author( $author );

}



/**

 * Is the query for an existing category archive page?

 *

 * If the $category parameter is specified, this function will additionally

 * check if the query is for one of the categories specified.

 *

 * @see WP_Query::is_category()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param mixed $category Optional. Category ID, name, slug, or array of Category IDs, names, and slugs.

 * @return bool

 */

function is_category( $category = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_category( $category );

}



/**

 * Is the query for an existing tag archive page?

 *

 * If the $tag parameter is specified, this function will additionally

 * check if the query is for one of the tags specified.

 *

 * @see WP_Query::is_tag()

 * @since 2.3.0

 * @uses $wp_query

 *

 * @param mixed $tag Optional. Tag ID, name, slug, or array of Tag IDs, names, and slugs.

 * @return bool

 */

function is_tag( $tag = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_tag( $tag );

}



/**

 * Is the query for an existing taxonomy archive page?

 *

 * If the $taxonomy parameter is specified, this function will additionally

 * check if the query is for that specific $taxonomy.

 *

 * If the $term parameter is specified in addition to the $taxonomy parameter,

 * this function will additionally check if the query is for one of the terms

 * specified.

 *

 * @see WP_Query::is_tax()

 * @since 2.5.0

 * @uses $wp_query

 *

 * @param mixed $taxonomy Optional. Taxonomy slug or slugs.

 * @param mixed $term Optional. Term ID, name, slug or array of Term IDs, names, and slugs.

 * @return bool

 */

function is_tax( $taxonomy = '', $term = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_tax( $taxonomy, $term );

}



/**

 * Whether the current URL is within the comments popup window.

 *

 * @see WP_Query::is_comments_popup()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_comments_popup() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_comments_popup();

}



/**

 * Is the query for an existing date archive?

 *

 * @see WP_Query::is_date()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_date() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_date();

}



/**

 * Is the query for an existing day archive?

 *

 * @see WP_Query::is_day()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_day() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_day();

}



/**

 * Is the query for a feed?

 *

 * @see WP_Query::is_feed()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param string|array $feeds Optional feed types to check.

 * @return bool

 */

function is_feed( $feeds = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_feed( $feeds );

}



/**

 * Is the query for a comments feed?

 *

 * @see WP_Query::is_comments_feed()

 * @since 3.0.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_comment_feed() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_comment_feed();

}



/**

 * Is the query for the front page of the site?

 *

 * This is for what is displayed at your site's main URL.

 *

 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'.

 *

 * If you set a static page for the front page of your site, this function will return

 * true when viewing that page.

 *

 * Otherwise the same as @see is_home()

 *

 * @see WP_Query::is_front_page()

 * @since 2.5.0

 * @uses is_home()

 * @uses get_option()

 *

 * @return bool True, if front of site.

 */

function is_front_page() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_front_page();

}



/**

 * Is the query for the blog homepage?

 *

 * This is the page which shows the time based blog content of your site.

 *

 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.

 *

 * If you set a static page for the front page of your site, this function will return

 * true only on the page you set as the "Posts page".

 *

 * @see is_front_page()

 *

 * @see WP_Query::is_home()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool True if blog view homepage.

 */

function is_home() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_home();

}



/**

 * Is the query for an existing month archive?

 *

 * @see WP_Query::is_month()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_month() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_month();

}



/**

 * Is the query for an existing single page?

 *

 * If the $page parameter is specified, this function will additionally

 * check if the query is for one of the pages specified.

 *

 * @see is_single()

 * @see is_singular()

 *

 * @see WP_Query::is_page()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param mixed $page Page ID, title, slug, or array of such.

 * @return bool

 */

function is_page( $page = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_page( $page );

}



/**

 * Is the query for paged result and not for the first page?

 *

 * @see WP_Query::is_paged()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_paged() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_paged();

}



/**

 * Is the query for a post or page preview?

 *

 * @see WP_Query::is_preview()

 * @since 2.0.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_preview() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_preview();

}



/**

 * Is the query for the robots file?

 *

 * @see WP_Query::is_robots()

 * @since 2.1.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_robots() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_robots();

}



/**

 * Is the query for a search?

 *

 * @see WP_Query::is_search()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_search() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_search();

}



/**

 * Is the query for an existing single post?

 *

 * Works for any post type, except attachments and pages

 *

 * If the $post parameter is specified, this function will additionally

 * check if the query is for one of the Posts specified.

 *

 * @see is_page()

 * @see is_singular()

 *

 * @see WP_Query::is_single()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param mixed $post Post ID, title, slug, or array of such.

 * @return bool

 */

function is_single( $post = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_single( $post );

}



/**

 * Is the query for an existing single post of any post type (post, attachment, page, ... )?

 *

 * If the $post_types parameter is specified, this function will additionally

 * check if the query is for one of the Posts Types specified.

 *

 * @see is_page()

 * @see is_single()

 *

 * @see WP_Query::is_singular()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @param mixed $post_types Optional. Post Type or array of Post Types

 * @return bool

 */

function is_singular( $post_types = '' ) {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_singular( $post_types );

}



/**

 * Is the query for a specific time?

 *

 * @see WP_Query::is_time()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_time() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_time();

}



/**

 * Is the query for a trackback endpoint call?

 *

 * @see WP_Query::is_trackback()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_trackback() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_trackback();

}



/**

 * Is the query for an existing year archive?

 *

 * @see WP_Query::is_year()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_year() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_year();

}



/**

 * Is the query a 404 (returns no results)?

 *

 * @see WP_Query::is_404()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function is_404() {

	global $wp_query;



	if ( ! isset( $wp_query ) ) {

		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1' );

		return false;

	}



	return $wp_query->is_404();

}



/**

 * Is the query the main query?

 *

 * @since 3.3.0

 *

 * @return bool

 */

function is_main_query() {

	if ( 'pre_get_posts' === current_filter() ) {

		$message = sprintf( __( 'In <code>%1$s</code>, use the <code>%2$s</code> method, not the <code>%3$s</code> function. See %4$s.' ),

			'pre_get_posts', 'WP_Query::is_main_query()', 'is_main_query()', __( 'http://codex.wordpress.org/Function_Reference/is_main_query' ) );

		_doing_it_wrong( __FUNCTION__, $message, '3.7' );

	}



	global $wp_query;

	return $wp_query->is_main_query();

}



/*

 * The Loop. Post loop control.

 */



/**

 * Whether current WordPress query has results to loop over.

 *

 * @see WP_Query::have_posts()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return bool

 */

function have_posts() {

	global $wp_query;



	return $wp_query->have_posts();

}



/**

 * Whether the caller is in the Loop.

 *

 * @since 2.0.0

 * @uses $wp_query

 *

 * @return bool True if caller is within loop, false if loop hasn't started or ended.

 */

function in_the_loop() {

	global $wp_query;



	return $wp_query->in_the_loop;

}



/**

 * Rewind the loop posts.

 *

 * @see WP_Query::rewind_posts()

 * @since 1.5.0

 * @uses $wp_query

 *

 * @return null

 */

function rewind_posts() {

	global $wp_query;



	return $wp_query->rewind_posts();

}



/**

 * Iterate the post index in the loop.

 *

 * @see WP_Query::the_post()

 * @since 1.5.0

 * @uses $wp_query

 */

function the_post() {

	global $wp_query;



	$wp_query->the_post();

}



/*

 * Comments loop.

 */



/**

 * Whether there are comments to loop over.

 *

 * @see WP_Query::have_comments()

 * @since 2.2.0

 * @uses $wp_query

 *

 * @return bool

 */

function have_comments() {

	global $wp_query;

	return $wp_query->have_comments();

}



/**

 * Iterate comment index in the comment loop.

 *

 * @see WP_Query::the_comment()

 * @since 2.2.0

 * @uses $wp_query

 *

 * @return object

 */

function the_comment() {

	global $wp_query;

	return $wp_query->the_comment();

}



/*

 * WP_Query

 */



/**

 * The WordPress Query class.

 *

 * @link http://codex.wordpress.org/Function_Reference/WP_Query Codex page.

 *

 * @since 1.5.0

 */

class WP_Query {



	/**

	 * Query vars set by the user

	 *

	 * @since 1.5.0

	 * @access public

	 * @var array

	 */

	public $query;



	/**

	 * Query vars, after parsing

	 *

	 * @since 1.5.0

	 * @access public

	 * @var array

	 */

	public $query_vars = array();



	/**

	 * Taxonomy query, as passed to get_tax_sql()

	 *

	 * @since 3.1.0

	 * @access public

	 * @var object WP_Tax_Query

	 */

	public $tax_query;



	/**

	 * Metadata query container

	 *

	 * @since 3.2.0

	 * @access public

	 * @var object WP_Meta_Query

	 */

	public $meta_query = false;



	/**

	 * Date query container

	 *

	 * @since 3.7.0

	 * @access public

	 * @var object WP_Date_Query

	 */

	public $date_query = false;



	/**

	 * Holds the data for a single object that is queried.

	 *

	 * Holds the contents of a post, page, category, attachment.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var object|array

	 */

	public $queried_object;



	/**

	 * The ID of the queried object.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var int

	 */

	public $queried_object_id;



	/**

	 * Get post database query.

	 *

	 * @since 2.0.1

	 * @access public

	 * @var string

	 */

	public $request;



	/**

	 * List of posts.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var array

	 */

	public $posts;



	/**

	 * The amount of posts for the current query.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var int

	 */

	public $post_count = 0;



	/**

	 * Index of the current item in the loop.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var int

	 */

	public $current_post = -1;



	/**

	 * Whether the loop has started and the caller is in the loop.

	 *

	 * @since 2.0.0

	 * @access public

	 * @var bool

	 */

	public $in_the_loop = false;



	/**

	 * The current post.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var WP_Post

	 */

	public $post;



	/**

	 * The list of comments for current post.

	 *

	 * @since 2.2.0

	 * @access public

	 * @var array

	 */

	public $comments;



	/**

	 * The amount of comments for the posts.

	 *

	 * @since 2.2.0

	 * @access public

	 * @var int

	 */

	public $comment_count = 0;



	/**

	 * The index of the comment in the comment loop.

	 *

	 * @since 2.2.0

	 * @access public

	 * @var int

	 */

	public $current_comment = -1;



	/**

	 * Current comment ID.

	 *

	 * @since 2.2.0

	 * @access public

	 * @var int

	 */

	public $comment;



	/**

	 * The amount of found posts for the current query.

	 *

	 * If limit clause was not used, equals $post_count.

	 *

	 * @since 2.1.0

	 * @access public

	 * @var int

	 */

	public $found_posts = 0;



	/**

	 * The amount of pages.

	 *

	 * @since 2.1.0

	 * @access public

	 * @var int

	 */

	public $max_num_pages = 0;



	/**

	 * The amount of comment pages.

	 *

	 * @since 2.7.0

	 * @access public

	 * @var int

	 */

	public $max_num_comment_pages = 0;



	/**

	 * Set if query is single post.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_single = false;



	/**

	 * Set if query is preview of blog.

	 *

	 * @since 2.0.0

	 * @access public

	 * @var bool

	 */

	public $is_preview = false;



	/**

	 * Set if query returns a page.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_page = false;



	/**

	 * Set if query is an archive list.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_archive = false;



	/**

	 * Set if query is part of a date.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_date = false;



	/**

	 * Set if query contains a year.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_year = false;



	/**

	 * Set if query contains a month.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_month = false;



	/**

	 * Set if query contains a day.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_day = false;



	/**

	 * Set if query contains time.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_time = false;



	/**

	 * Set if query contains an author.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_author = false;



	/**

	 * Set if query contains category.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_category = false;



	/**

	 * Set if query contains tag.

	 *

	 * @since 2.3.0

	 * @access public

	 * @var bool

	 */

	public $is_tag = false;



	/**

	 * Set if query contains taxonomy.

	 *

	 * @since 2.5.0

	 * @access public

	 * @var bool

	 */

	public $is_tax = false;



	/**

	 * Set if query was part of a search result.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_search = false;



	/**

	 * Set if query is feed display.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_feed = false;



	/**

	 * Set if query is comment feed display.

	 *

	 * @since 2.2.0

	 * @access public

	 * @var bool

	 */

	public $is_comment_feed = false;



	/**

	 * Set if query is trackback.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_trackback = false;



	/**

	 * Set if query is blog homepage.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_home = false;



	/**

	 * Set if query couldn't found anything.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_404 = false;



	/**

	 * Set if query is within comments popup window.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_comments_popup = false;



	/**

	 * Set if query is paged

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_paged = false;



	/**

	 * Set if query is part of administration page.

	 *

	 * @since 1.5.0

	 * @access public

	 * @var bool

	 */

	public $is_admin = false;



	/**

	 * Set if query is an attachment.

	 *

	 * @since 2.0.0

	 * @access public

	 * @var bool

	 */

	public $is_attachment = false;



	/**

	 * Set if is single, is a page, or is an attachment.

	 *

	 * @since 2.1.0

	 * @access public

	 * @var bool

	 */

	public $is_singular = false;



	/**

	 * Set if query is for robots.

	 *

	 * @since 2.1.0

	 * @access public

	 * @var bool

	 */

	public $is_robots = false;



	/**

	 * Set if query contains posts.

	 *

	 * Basically, the homepage if the option isn't set for the static homepage.

	 *

	 * @since 2.1.0

	 * @access public

	 * @var bool

	 */

	public $is_posts_page = false;



	/**

	 * Set if query is for a post type archive.

	 *

	 * @since 3.1.0

	 * @access public

	 * @var bool

	 */

	public $is_post_type_archive = false;



	/**

	 * Stores the ->query_vars state like md5(serialize( $this->query_vars ) ) so we know

	 * whether we have to re-parse because something has changed

	 *

	 * @since 3.1.0

	 * @access private

	 */

	private $query_vars_hash = false;



	/**

	 * Whether query vars have changed since the initial parse_query() call. Used to catch modifications to query vars made

	 * via pre_get_posts hooks.

	 *

	 * @since 3.1.1

	 * @access private

	 */

	private $query_vars_changed = true;



	/**

	 * Set if post thumbnails are cached

	 *

	 * @since 3.2.0

	 * @access public

	 * @var bool

	 */

	 public $thumbnails_cached = false;



	/**

	 * Cached list of search stopwords.

	 *

	 * @since 3.7.0

	 * @var array

	 */

	private $stopwords;



	/**

	 * Resets query flags to false.

	 *

	 * The query flags are what page info WordPress was able to figure out.

	 *

	 * @since 2.0.0

	 * @access private

	 */

	private function init_query_flags() {

		$this->is_single = false;

		$this->is_preview = false;

		$this->is_page = false;

		$this->is_archive = false;

		$this->is_date = false;

		$this->is_year = false;

		$this->is_month = false;

		$this->is_day = false;

		$this->is_time = false;

		$this->is_author = false;

		$this->is_category = false;

		$this->is_tag = false;

		$this->is_tax = false;

		$this->is_search = false;

		$this->is_feed = false;

		$this->is_comment_feed = false;

		$this->is_trackback = false;

		$this->is_home = false;

		$this->is_404 = false;

		$this->is_comments_popup = false;

		$this->is_paged = false;

		$this->is_admin = false;

		$this->is_attachment = false;

		$this->is_singular = false;

		$this->is_robots = false;

		$this->is_posts_page = false;

		$this->is_post_type_archive = false;

	}



	/**

	 * Initiates object properties and sets default values.

	 *

	 * @since 1.5.0

	 * @access public

	 */

	public function init() {

		unset($this->posts);

		unset($this->query);

		$this->query_vars = array();

		unset($this->queried_object);

		unset($this->queried_object_id);

		$this->post_count = 0;

		$this->current_post = -1;

		$this->in_the_loop = false;

		unset( $this->request );

		unset( $this->post );

		unset( $this->comments );

		unset( $this->comment );

		$this->comment_count = 0;

		$this->current_comment = -1;

		$this->found_posts = 0;

		$this->max_num_pages = 0;

		$this->max_num_comment_pages = 0;



		$this->init_query_flags();

	}



	/**

	 * Reparse the query vars.

	 *

	 * @since 1.5.0

	 * @access public

	 */

	public function parse_query_vars() {

		$this->parse_query();

	}



	/**

	 * Fills in the query variables, which do not exist within the parameter.

	 *

	 * @since 2.1.0

	 * @access public

	 *

	 * @param array $array Defined query variables.

	 * @return array Complete query variables with undefined ones filled in empty.

	 */

	public function fill_query_vars($array) {

		$keys = array(

			'error'

			, 'm'

			, 'p'

			, 'post_parent'

			, 'subpost'

			, 'subpost_id'

			, 'attachment'

			, 'attachment_id'

			, 'name'

			, 'static'

			, 'pagename'

			, 'page_id'

			, 'second'

			, 'minute'

			, 'hour'

			, 'day'

			, 'monthnum'

			, 'year'

			, 'w'

			, 'category_name'

			, 'tag'

			, 'cat'

			, 'tag_id'

			, 'author'

			, 'author_name'

			, 'feed'

			, 'tb'

			, 'paged'

			, 'comments_popup'

			, 'meta_key'

			, 'meta_value'

			, 'preview'

			, 's'

			, 'sentence'

			, 'fields'

			, 'menu_order'

		);



		foreach ( $keys as $key ) {

			if ( !isset($array[$key]) )

				$array[$key] = '';

		}



		$array_keys = array( 'category__in', 'category__not_in', 'category__and', 'post__in', 'post__not_in',

			'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'post_parent__in', 'post_parent__not_in',

			'author__in', 'author__not_in' );



		foreach ( $array_keys as $key ) {

			if ( !isset($array[$key]) )

				$array[$key] = array();

		}

		return $array;

	}



	/**

	 * Parse a query string and set query type booleans.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @param string|array $query {

	 *     Optional. Array or string of Query parameters.

	 *

	 *     @type int          $attachment_id           Attachment post ID. Used for 'attachment' post_type.

	 *     @type int|string   $author                  Author ID, or comma-separated list of IDs.

	 *     @type string       $author_name             User 'user_nicename'.

	 *     @type array        $author__in              An array of author IDs to query from.

	 *     @type array        $author__not_in          An array of author IDs not to query from.

	 *     @type bool         $cache_results           Whether to cache post information. Default true.

	 *     @type int|string   $cat                     Category ID or comma-separated list of IDs (this or any children).

	 *     @type array        $category__and           An array of category IDs (AND in).

	 *     @type array        $category__in            An array of category IDs (OR in, no children).

	 *     @type array        $category__not_in        An array of category IDs (NOT in).

	 *     @type string       $category_name           Use category slug (not name, this or any children).

	 *     @type int          $comments_per_page       The number of comments to return per page.

	 *                                                 Default 'comments_per_page' option.

	 *     @type int|string   $comments_popup          Whether the query is within the comments popup. Default empty.

	 *     @type array        $date_query              An associative array of WP_Date_Query arguments.

	 *                                                 {@see WP_Date_Query::__construct()}

	 *     @type int          $day                     Day of the month. Default empty. Accepts numbers 1-31.

	 *     @type bool         $exact                   Whether to search by exact keyword. Default false.

	 *     @type string|array $fields                  Which fields to return. Single field or all fields (string),

	 *                                                 or array of fields. 'id=>parent' uses 'id' and 'post_parent'.

	 *                                                 Default all fields. Accepts 'ids', 'id=>parent'.

	 *     @type int          $hour                    Hour of the day. Default empty. Accepts numbers 0-23.

	 *     @type bool         $ignore_sticky_posts     Whether to ignore sticky posts or not. Setting this to false

	 *                                                 excludes stickies from 'post__in'. Accepts 1|true, 0|false.

	 *                                                 Default 0|false.

	 *     @type int          $m                       Combination YearMonth. Accepts any four-digit year and month

	 *                                                 numbers 1-12. Default empty.

	 *     @type string       $meta_compare            Comparison operator to test the 'meta_value'.

	 *     @type string       $meta_key                Custom field key.

	 *     @type array        $meta_query              An associative array of WP_Meta_Query arguments.

	 *                                                 {@see WP_Meta_Query->queries}

	 *     @type string       $meta_value              Custom field value.

	 *     @type int          $meta_value_num          Custom field value number.

	 *     @type int          $menu_order              The menu order of the posts.

	 *     @type int          $monthnum                The two-digit month. Default empty. Accepts numbers 1-12.

	 *     @type string       $name                    Post slug.

	 *     @type bool         $nopaging                Show all posts (true) or paginate (false). Default false.

	 *     @type bool         $no_found_rows           Whether to skip counting the total rows found. Enabling can improve

	 *                                                 performance. Default false.

	 *     @type int          $offset                  The number of posts to offset before retrieval.

	 *     @type string       $order                   Designates ascending or descending order of posts. Default 'DESC'.

	 *                                                 Accepts 'ASC', 'DESC'.

	 *     @type string       $orderby                 Sort retrieved posts by parameter. One or more options can be

	 *                                                 passed. To use 'meta_value', or 'meta_value_num',

	 *                                                 'meta_key=keyname' must be also be defined. Default 'date'.

	 *                                                 Accepts 'none', 'name', 'author', 'date', 'title', 'modified',

	 *                                                 'menu_order', 'parent', 'ID', 'rand', 'comment_count'.

	 *     @type int          $p                       Post ID.

	 *     @type int          $page                    Show the number of posts that would show up on page X of a

	 *                                                 static front page.

	 *     @type int          $paged                   The number of the current page.

	 *     @type int          $page_id                 Page ID.

	 *     @type string       $pagename                Page slug.

	 *     @type string       $perm                    Show posts if user has the appropriate capability.

	 *     @type array        $post__in                An array of post IDs to retrieve, sticky posts will be included

	 *     @type string       $post_mime_type          The mime type of the post. Used for 'attachment' post_type.

	 *     @type array        $post__not_in            An array of post IDs not to retrieve. Note: a string of comma-

	 *                                                 separated IDs will NOT work.

	 *     @type int          $post_parent             Page ID to retrieve child pages for. Use 0 to only retrieve

	 *                                                 top-level pages.

	 *     @type array        $post_parent__in         An array containing parent page IDs to query child pages from.

	 *     @type array        $post_parent__not_in     An array containing parent page IDs not to query child pages from.

	 *     @type string|array $post_type               A post type slug (string) or array of post type slugs.

	 *                                                 Default 'any' if using 'tax_query'.

	 *     @type string|array $post_status             A post status (string) or array of post statuses.

	 *     @type int          $posts_per_page          The number of posts to query for. Use -1 to request all posts.

	 *     @type int          $posts_per_archive_page  The number of posts to query for by archive page. Overrides

	 *                                                 'posts_per_page' when is_archive(), or is_search() are true.

	 *     @type string       $s                       Search keyword.

	 *     @type int          $second                  Second of the minute. Default empty. Accepts numbers 0-60.

	 *     @type array        $search_terms            Array of search terms.

	 *     @type bool         $sentence                Whether to search by phrase. Default false.

	 *     @type bool         $suppress_filters        Whether to suppress filters. Default false.

	 *     @type string       $tag                     Tag slug. Comma-separated (either), Plus-separated (all).

	 *     @type array        $tag__and                An array of tag ids (AND in).

	 *     @type array        $tag__in                 An array of tag ids (OR in).

	 *     @type array        $tag__not_in             An array of tag ids (NOT in).

	 *     @type int          $tag_id                  Tag id or comma-separated list of IDs.

	 *     @type array        $tag_slug__and           An array of tag slugs (AND in).

	 *     @type array        $tag_slug__in            An array of tag slugs (OR in). unless 'ignore_sticky_posts' is

	 *                                                 true. Note: a string of comma-separated IDs will NOT work.

	 *     @type array        $tax_query               An associative array of WP_Tax_Query arguments.

	 *                                                 {@see WP_Tax_Query->queries}

	 *     @type bool         $update_post_meta_cache  Whether to update the post meta cache. Default true.

	 *     @type bool         $update_post_term_cache  Whether to update the post term cache. Default true.

	 *     @type int          $w                       The week number of the year. Default empty. Accepts numbers 0-53.

	 *     @type int          $year                    The four-digit year. Default empty. Accepts any four-digit year.

	 * }

	 */

	public function parse_query( $query =  '' ) {

		if ( ! empty( $query ) ) {

			$this->init();

			$this->query = $this->query_vars = wp_parse_args( $query );

		} elseif ( ! isset( $this->query ) ) {

			$this->query = $this->query_vars;

		}



		$this->query_vars = $this->fill_query_vars($this->query_vars);

		$qv = &$this->query_vars;

		$this->query_vars_changed = true;



		if ( ! empty($qv['robots']) )

			$this->is_robots = true;



		$qv['p'] =  absint($qv['p']);

		$qv['page_id'] =  absint($qv['page_id']);

		$qv['year'] = absint($qv['year']);

		$qv['monthnum'] = absint($qv['monthnum']);

		$qv['day'] = absint($qv['day']);

		$qv['w'] = absint($qv['w']);

		$qv['m'] = preg_replace( '|[^0-9]|', '', $qv['m'] );

		$qv['paged'] = absint($qv['paged']);

		$qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers

		$qv['author'] = preg_replace( '|[^0-9,-]|', '', $qv['author'] ); // comma separated list of positive or negative integers

		$qv['pagename'] = trim( $qv['pagename'] );

		$qv['name'] = trim( $qv['name'] );

		if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);

		if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);

		if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);

		if ( '' !== $qv['menu_order'] ) $qv['menu_order'] = absint($qv['menu_order']);



		// Fairly insane upper bound for search string lengths.

		if ( ! empty( $qv['s'] ) && strlen( $qv['s'] ) > 1600 )

			$qv['s'] = '';



		// Compat. Map subpost to attachment.

		if ( '' != $qv['subpost'] )

			$qv['attachment'] = $qv['subpost'];

		if ( '' != $qv['subpost_id'] )

			$qv['attachment_id'] = $qv['subpost_id'];



		$qv['attachment_id'] = absint($qv['attachment_id']);



		if ( ('' != $qv['attachment']) || !empty($qv['attachment_id']) ) {

			$this->is_single = true;

			$this->is_attachment = true;

		} elseif ( '' != $qv['name'] ) {

			$this->is_single = true;

		} elseif ( $qv['p'] ) {

			$this->is_single = true;

		} elseif ( ('' !== $qv['hour']) && ('' !== $qv['minute']) &&('' !== $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day']) ) {

			// If year, month, day, hour, minute, and second are set, a single

			// post is being queried.

			$this->is_single = true;

		} elseif ( '' != $qv['static'] || '' != $qv['pagename'] || !empty($qv['page_id']) ) {

			$this->is_page = true;

			$this->is_single = false;

		} else {

			// Look for archive queries. Dates, categories, authors, search, post type archives.



			if ( isset( $this->query['s'] ) ) {

				$this->is_search = true;

			}



			if ( '' !== $qv['second'] ) {

				$this->is_time = true;

				$this->is_date = true;

			}



			if ( '' !== $qv['minute'] ) {

				$this->is_time = true;

				$this->is_date = true;

			}



			if ( '' !== $qv['hour'] ) {

				$this->is_time = true;

				$this->is_date = true;

			}



			if ( $qv['day'] ) {

				if ( ! $this->is_date ) {

					$date = sprintf( '%04d-%02d-%02d', $qv['year'], $qv['monthnum'], $qv['day'] );

					if ( $qv['monthnum'] && $qv['year'] && ! wp_checkdate( $qv['monthnum'], $qv['day'], $qv['year'], $date ) ) {

						$qv['error'] = '404';

					} else {

						$this->is_day = true;

						$this->is_date = true;

					}

				}

			}



			if ( $qv['monthnum'] ) {

				if ( ! $this->is_date ) {

					if ( 12 < $qv['monthnum'] ) {

						$qv['error'] = '404';

					} else {

						$this->is_month = true;

						$this->is_date = true;

					}

				}

			}



			if ( $qv['year'] ) {

				if ( ! $this->is_date ) {

					$this->is_year = true;

					$this->is_date = true;

				}

			}



			if ( $qv['m'] ) {

				$this->is_date = true;

				if ( strlen($qv['m']) > 9 ) {

					$this->is_time = true;

				} else if ( strlen($qv['m']) > 7 ) {

					$this->is_day = true;

				} else if ( strlen($qv['m']) > 5 ) {

					$this->is_month = true;

				} else {

					$this->is_year = true;

				}

			}



			if ( '' != $qv['w'] ) {

				$this->is_date = true;

			}



			$this->query_vars_hash = false;

			$this->parse_tax_query( $qv );



			foreach ( $this->tax_query->queries as $tax_query ) {

				if ( 'NOT IN' != $tax_query['operator'] ) {

					switch ( $tax_query['taxonomy'] ) {

						case 'category':

							$this->is_category = true;

							break;

						case 'post_tag':

							$this->is_tag = true;

							break;

						default:

							$this->is_tax = true;

					}

				}

			}

			unset( $tax_query );



			if ( empty($qv['author']) || ($qv['author'] == '0') ) {

				$this->is_author = false;

			} else {

				$this->is_author = true;

			}



			if ( '' != $qv['author_name'] )

				$this->is_author = true;



			if ( !empty( $qv['post_type'] ) && ! is_array( $qv['post_type'] ) ) {

				$post_type_obj = get_post_type_object( $qv['post_type'] );

				if ( ! empty( $post_type_obj->has_archive ) )

					$this->is_post_type_archive = true;

			}



			if ( $this->is_post_type_archive || $this->is_date || $this->is_author || $this->is_category || $this->is_tag || $this->is_tax )

				$this->is_archive = true;

		}



		if ( '' != $qv['feed'] )

			$this->is_feed = true;



		if ( '' != $qv['tb'] )

			$this->is_trackback = true;



		if ( '' != $qv['paged'] && ( intval($qv['paged']) > 1 ) )

			$this->is_paged = true;



		if ( '' != $qv['comments_popup'] )

			$this->is_comments_popup = true;



		// if we're previewing inside the write screen

		if ( '' != $qv['preview'] )

			$this->is_preview = true;



		if ( is_admin() )

			$this->is_admin = true;



		if ( false !== strpos($qv['feed'], 'comments-') ) {

			$qv['feed'] = str_replace('comments-', '', $qv['feed']);

			$qv['withcomments'] = 1;

		}



		$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;



		if ( $this->is_feed && ( !empty($qv['withcomments']) || ( empty($qv['withoutcomments']) && $this->is_singular ) ) )

			$this->is_comment_feed = true;



		if ( !( $this->is_singular || $this->is_archive || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup || $this->is_robots ) )

			$this->is_home = true;



		// Correct is_* for page_on_front and page_for_posts

		if ( $this->is_home && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {

			$_query = wp_parse_args($this->query);

			// pagename can be set and empty depending on matched rewrite rules. Ignore an empty pagename.

			if ( isset($_query['pagename']) && '' == $_query['pagename'] )

				unset($_query['pagename']);

			if ( empty($_query) || !array_diff( array_keys($_query), array('preview', 'page', 'paged', 'cpage') ) ) {

				$this->is_page = true;

				$this->is_home = false;

				$qv['page_id'] = get_option('page_on_front');

				// Correct <!--nextpage--> for page_on_front

				if ( !empty($qv['paged']) ) {

					$qv['page'] = $qv['paged'];

					unset($qv['paged']);

				}

			}

		}



		if ( '' != $qv['pagename'] ) {

			$this->queried_object = get_page_by_path($qv['pagename']);

			if ( !empty($this->queried_object) )

				$this->queried_object_id = (int) $this->queried_object->ID;

			else

				unset($this->queried_object);



			if  ( 'page' == get_option('show_on_front') && isset($this->queried_object_id) && $this->queried_object_id == get_option('page_for_posts') ) {

				$this->is_page = false;

				$this->is_home = true;

				$this->is_posts_page = true;

			}

		}



		if ( $qv['page_id'] ) {

			if  ( 'page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts') ) {

				$this->is_page = false;

				$this->is_home = true;

				$this->is_posts_page = true;

			}

		}



		if ( !empty($qv['post_type']) ) {

			if ( is_array($qv['post_type']) )

				$qv['post_type'] = array_map('sanitize_key', $qv['post_type']);

			else

				$qv['post_type'] = sanitize_key($qv['post_type']);

		}



		if ( ! empty( $qv['post_status'] ) ) {

			if ( is_array( $qv['post_status'] ) )

				$qv['post_status'] = array_map('sanitize_key', $qv['post_status']);

			else

				$qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);

		}



		if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )

			$this->is_comment_feed = false;



		$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;

		// Done correcting is_* for page_on_front and page_for_posts



		if ( '404' == $qv['error'] )

			$this->set_404();



		$this->query_vars_hash = md5( serialize( $this->query_vars ) );

		$this->query_vars_changed = false;



		/**

		 * Fires after the main query vars have been parsed.

		 *

		 * @since 1.5.0

		 *

		 * @param WP_Query &$this The WP_Query instance (passed by reference).

		 */

		do_action_ref_array( 'parse_query', array( &$this ) );

	}



	/**

	 * Parses various taxonomy related query vars.

	 *

	 * For BC, this method is not marked as protected. See [28987].

	 *

	 * @access protected

	 * @since 3.1.0

	 *

	 * @param array &$q The query variables

	 */

	function parse_tax_query( &$q ) {

		if ( ! empty( $q['tax_query'] ) && is_array( $q['tax_query'] ) ) {

			$tax_query = $q['tax_query'];

		} else {

			$tax_query = array();

		}



		if ( !empty($q['taxonomy']) && !empty($q['term']) ) {

			$tax_query[] = array(

				'taxonomy' => $q['taxonomy'],

				'terms' => array( $q['term'] ),

				'field' => 'slug',

			);

		}



		foreach ( get_taxonomies( array() , 'objects' ) as $taxonomy => $t ) {

			if ( 'post_tag' == $taxonomy )

				continue;	// Handled further down in the $q['tag'] block



			if ( $t->query_var && !empty( $q[$t->query_var] ) ) {

				$tax_query_defaults = array(

					'taxonomy' => $taxonomy,

					'field' => 'slug',

				);



 				if ( isset( $t->rewrite['hierarchical'] ) && $t->rewrite['hierarchical'] ) {

					$q[$t->query_var] = wp_basename( $q[$t->query_var] );

				}



				$term = $q[$t->query_var];



				if ( strpos($term, '+') !== false ) {

					$terms = preg_split( '/[+]+/', $term );

					foreach ( $terms as $term ) {

						$tax_query[] = array_merge( $tax_query_defaults, array(

							'terms' => array( $term )

						) );

					}

				} else {

					$tax_query[] = array_merge( $tax_query_defaults, array(

						'terms' => preg_split( '/[,]+/', $term )

					) );

				}

			}

		}



		// Category stuff

		if ( ! empty( $q['cat'] ) && ! $this->is_singular ) {

			$cat_in = $cat_not_in = array();



			$cat_array = preg_split( '/[,\s]+/', urldecode( $q['cat'] ) );

			$cat_array = array_map( 'intval', $cat_array );

			$q['cat'] = implode( ',', $cat_array );



			foreach ( $cat_array as $cat ) {

				if ( $cat > 0 )

					$cat_in[] = $cat;

				elseif ( $cat < 0 )

					$cat_not_in[] = abs( $cat );

			}



			if ( ! empty( $cat_in ) ) {

				$tax_query[] = array(

					'taxonomy' => 'category',

					'terms' => $cat_in,

					'field' => 'term_id',

					'include_children' => true

				);

			}



			if ( ! empty( $cat_not_in ) ) {

				$tax_query[] = array(

					'taxonomy' => 'category',

					'terms' => $cat_not_in,

					'field' => 'term_id',

					'operator' => 'NOT IN',

					'include_children' => true

				);

			}

			unset( $cat_array, $cat_in, $cat_not_in );

		}



		if ( ! empty( $q['category__and'] ) && 1 === count( (array) $q['category__and'] ) ) {

			$q['category__and'] = (array) $q['category__and'];

			if ( ! isset( $q['category__in'] ) )

				$q['category__in'] = array();

			$q['category__in'][] = absint( reset( $q['category__and'] ) );

			unset( $q['category__and'] );

		}



		if ( ! empty( $q['category__in'] ) ) {

			$q['category__in'] = array_map( 'absint', array_unique( (array) $q['category__in'] ) );

			$tax_query[] = array(

				'taxonomy' => 'category',

				'terms' => $q['category__in'],

				'field' => 'term_id',

				'include_children' => false

			);

		}



		if ( ! empty($q['category__not_in']) ) {

			$q['category__not_in'] = array_map( 'absint', array_unique( (array) $q['category__not_in'] ) );

			$tax_query[] = array(

				'taxonomy' => 'category',

				'terms' => $q['category__not_in'],

				'operator' => 'NOT IN',

				'include_children' => false

			);

		}



		if ( ! empty($q['category__and']) ) {

			$q['category__and'] = array_map( 'absint', array_unique( (array) $q['category__and'] ) );

			$tax_query[] = array(

				'taxonomy' => 'category',

				'terms' => $q['category__and'],

				'field' => 'term_id',

				'operator' => 'AND',

				'include_children' => false

			);

		}



		// Tag stuff

		if ( '' != $q['tag'] && !$this->is_singular && $this->query_vars_changed ) {

			if ( strpos($q['tag'], ',') !== false ) {

				$tags = preg_split('/[,\r\n\t ]+/', $q['tag']);

				foreach ( (array) $tags as $tag ) {

					$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');

					$q['tag_slug__in'][] = $tag;

				}

			} else if ( preg_match('/[+\r\n\t ]+/', $q['tag']) || !empty($q['cat']) ) {

				$tags = preg_split('/[+\r\n\t ]+/', $q['tag']);

				foreach ( (array) $tags as $tag ) {

					$tag = sanitize_term_field('slug', $tag, 0, 'post_tag', 'db');

					$q['tag_slug__and'][] = $tag;

				}

			} else {

				$q['tag'] = sanitize_term_field('slug', $q['tag'], 0, 'post_tag', 'db');

				$q['tag_slug__in'][] = $q['tag'];

			}

		}



		if ( !empty($q['tag_id']) ) {

			$q['tag_id'] = absint( $q['tag_id'] );

			$tax_query[] = array(

				'taxonomy' => 'post_tag',

				'terms' => $q['tag_id']

			);

		}



		if ( !empty($q['tag__in']) ) {

			$q['tag__in'] = array_map('absint', array_unique( (array) $q['tag__in'] ) );

			$tax_query[] = array(

				'taxonomy' => 'post_tag',

				'terms' => $q['tag__in']

			);

		}



		if ( !empty($q['tag__not_in']) ) {

			$q['tag__not_in'] = array_map('absint', array_unique( (array) $q['tag__not_in'] ) );

			$tax_query[] = array(

				'taxonomy' => 'post_tag',

				'terms' => $q['tag__not_in'],

				'operator' => 'NOT IN'

			);

		}



		if ( !empty($q['tag__and']) ) {

			$q['tag__and'] = array_map('absint', array_unique( (array) $q['tag__and'] ) );

			$tax_query[] = array(

				'taxonomy' => 'post_tag',

				'terms' => $q['tag__and'],

				'operator' => 'AND'

			);

		}



		if ( !empty($q['tag_slug__in']) ) {

			$q['tag_slug__in'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__in'] ) );

			$tax_query[] = array(

				'taxonomy' => 'post_tag',

				'terms' => $q['tag_slug__in'],

				'field' => 'slug'

			);

		}



		if ( !empty($q['tag_slug__and']) ) {

			$q['tag_slug__and'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__and'] ) );

			$tax_query[] = array(

				'taxonomy' => 'post_tag',

				'terms' => $q['tag_slug__and'],

				'field' => 'slug',

				'operator' => 'AND'

			);

		}



		$this->tax_query = new WP_Tax_Query( $tax_query );



		/**

		 * Fires after taxonomy-related query vars have been parsed.

		 *

		 * @since 3.7.0

		 *

		 * @param WP_Query $this The WP_Query instance.

		 */

		do_action( 'parse_tax_query', $this );

	}



	/**

	 * Generate SQL for the WHERE clause based on passed search terms.

	 *

	 * @since 3.7.0

	 *

	 * @global wpdb $wpdb

	 * @param array $q Query variables.

	 * @return string WHERE clause.

	 */

	protected function parse_search( &$q ) {

		global $wpdb;



		$search = '';



		// added slashes screw with quote grouping when done early, so done later

		$q['s'] = stripslashes( $q['s'] );

		if ( empty( $_GET['s'] ) && $this->is_main_query() )

			$q['s'] = urldecode( $q['s'] );

		// there are no line breaks in <input /> fields

		$q['s'] = str_replace( array( "\r", "\n" ), '', $q['s'] );

		$q['search_terms_count'] = 1;

		if ( ! empty( $q['sentence'] ) ) {

			$q['search_terms'] = array( $q['s'] );

		} else {

			if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', $q['s'], $matches ) ) {

				$q['search_terms_count'] = count( $matches[0] );

				$q['search_terms'] = $this->parse_search_terms( $matches[0] );

				// if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence

				if ( empty( $q['search_terms'] ) || count( $q['search_terms'] ) > 9 )

					$q['search_terms'] = array( $q['s'] );

			} else {

				$q['search_terms'] = array( $q['s'] );

			}

		}



		$n = ! empty( $q['exact'] ) ? '' : '%';

		$searchand = '';

		$q['search_orderby_title'] = array();

		foreach ( $q['search_terms'] as $term ) {

			if ( $n ) {

				$like = '%' . $wpdb->esc_like( $term ) . '%';

				$q['search_orderby_title'][] = $wpdb->prepare( "$wpdb->posts.post_title LIKE %s", $like );

			}



			$like = $n . $wpdb->esc_like( $term ) . $n;

			$search .= $wpdb->prepare( "{$searchand}(($wpdb->posts.post_title LIKE %s) OR ($wpdb->posts.post_content LIKE %s))", $like, $like );

			$searchand = ' AND ';

		}



		if ( ! empty( $search ) ) {

			$search = " AND ({$search}) ";

			if ( ! is_user_logged_in() )

				$search .= " AND ($wpdb->posts.post_password = '') ";

		}



		return $search;

	}



	/**

	 * Check if the terms are suitable for searching.

	 *

	 * Uses an array of stopwords (terms) that are excluded from the separate

	 * term matching when searching for posts. The list of English stopwords is

	 * the approximate search engines list, and is translatable.

	 *

	 * @since 3.7.0

	 *

	 * @param array Terms to check.

	 * @return array Terms that are not stopwords.

	 */

	protected function parse_search_terms( $terms ) {

		$strtolower = function_exists( 'mb_strtolower' ) ? 'mb_strtolower' : 'strtolower';

		$checked = array();



		$stopwords = $this->get_search_stopwords();



		foreach ( $terms as $term ) {

			// keep before/after spaces when term is for exact match

			if ( preg_match( '/^".+"$/', $term ) )

				$term = trim( $term, "\"'" );

			else

				$term = trim( $term, "\"' " );



			// Avoid single A-Z.

			if ( ! $term || ( 1 === strlen( $term ) && preg_match( '/^[a-z]$/i', $term ) ) )

				continue;



			if ( in_array( call_user_func( $strtolower, $term ), $stopwords, true ) )

				continue;



			$checked[] = $term;

		}



		return $checked;

	}



	/**

	 * Retrieve stopwords used when parsing search terms.

	 *

	 * @since 3.7.0

	 *

	 * @return array Stopwords.

	 */

	protected function get_search_stopwords() {

		if ( isset( $this->stopwords ) )

			return $this->stopwords;



		/* translators: This is a comma-separated list of very common words that should be excluded from a search,

		 * like a, an, and the. These are usually called "stopwords". You should not simply translate these individual

		 * words into your language. Instead, look for and provide commonly accepted stopwords in your language.

		 */

		$words = explode( ',', _x( 'about,an,are,as,at,be,by,com,for,from,how,in,is,it,of,on,or,that,the,this,to,was,what,when,where,who,will,with,www',

			'Comma-separated list of search stopwords in your language' ) );



		$stopwords = array();

		foreach( $words as $word ) {

			$word = trim( $word, "\r\n\t " );

			if ( $word )

				$stopwords[] = $word;

		}



		/**

		 * Filter stopwords used when parsing search terms.

		 *

		 * @since 3.7.0

		 *

		 * @param array $stopwords Stopwords.

		 */

		$this->stopwords = apply_filters( 'wp_search_stopwords', $stopwords );

		return $this->stopwords;

	}



	/**

	 * Generate SQL for the ORDER BY condition based on passed search terms.

	 *

	 * @global wpdb $wpdb

	 * @param array $q Query variables.

	 * @return string ORDER BY clause.

	 */

	protected function parse_search_order( &$q ) {

		global $wpdb;



		if ( $q['search_terms_count'] > 1 ) {

			$num_terms = count( $q['search_orderby_title'] );

			$like = '%' . $wpdb->esc_like( $q['s'] ) . '%';



			$search_orderby = '(CASE ';

			// sentence match in 'post_title'

			$search_orderby .= $wpdb->prepare( "WHEN $wpdb->posts.post_title LIKE %s THEN 1 ", $like );



			// sanity limit, sort as sentence when more than 6 terms

			// (few searches are longer than 6 terms and most titles are not)

			if ( $num_terms < 7 ) {

				// all words in title

				$search_orderby .= 'WHEN ' . implode( ' AND ', $q['search_orderby_title'] ) . ' THEN 2 ';

				// any word in title, not needed when $num_terms == 1

				if ( $num_terms > 1 )

					$search_orderby .= 'WHEN ' . implode( ' OR ', $q['search_orderby_title'] ) . ' THEN 3 ';

			}



			// sentence match in 'post_content'

			$search_orderby .= $wpdb->prepare( "WHEN $wpdb->posts.post_content LIKE %s THEN 4 ", $like );

			$search_orderby .= 'ELSE 5 END)';

		} else {

			// single word or sentence search

			$search_orderby = reset( $q['search_orderby_title'] ) . ' DESC';

		}



		return $search_orderby;

	}



	/**

	 * If the passed orderby value is allowed, convert the alias to a

	 * properly-prefixed orderby value.

	 *

	 * @since 4.0.0

	 * @access protected

	 *

	 * @global wpdb $wpdb WordPress database access abstraction object.

	 *

	 * @param string $orderby Alias for the field to order by.

	 * @return string|bool Table-prefixed value to used in the ORDER clause. False otherwise.

	 */

	protected function parse_orderby( $orderby ) {

		global $wpdb;



		// Used to filter values.

		$allowed_keys = array(

			'post_name', 'post_author', 'post_date', 'post_title', 'post_modified',

			'post_parent', 'post_type', 'name', 'author', 'date', 'title', 'modified',

			'parent', 'type', 'ID', 'menu_order', 'comment_count', 'rand',

		);



		$meta_key = $this->get( 'meta_key' );

		if ( ! empty( $meta_key ) ) {

			$allowed_keys[] = $meta_key;

			$allowed_keys[] = 'meta_value';

			$allowed_keys[] = 'meta_value_num';

		}



		if ( ! in_array( $orderby, $allowed_keys ) ) {

			return false;

		}



		switch ( $orderby ) {

			case 'post_name':

			case 'post_author':

			case 'post_date':

			case 'post_title':

			case 'post_modified':

			case 'post_parent':

			case 'post_type':

			case 'ID':

			case 'menu_order':

			case 'comment_count':

				$orderby = "$wpdb->posts.{$orderby}";

				break;

			case 'rand':

				$orderby = 'RAND()';

				break;

			case $meta_key:

			case 'meta_value':

				$type = $this->get( 'meta_type' );

				if ( ! empty( $type ) ) {

					$meta_type = $this->meta_query->get_cast_for_type( $type );

					$orderby = "CAST($wpdb->postmeta.meta_value AS {$meta_type})";

				} else {

					$orderby = "$wpdb->postmeta.meta_value";

				}

				break;

			case 'meta_value_num':

				$orderby = "$wpdb->postmeta.meta_value+0";

				break;

			default:

				$orderby = "$wpdb->posts.post_" . $orderby;

				break;

		}



		return $orderby;

	}



	/**

	 * Parse an 'order' query variable and cast it to ASC or DESC as necessary.

	 *

	 * @since 4.0.0

	 * @access protected

	 *

	 * @param string $order The 'order' query variable.

	 * @return string The sanitized 'order' query variable.

	 */

	protected function parse_order( $order ) {

		if ( ! is_string( $order ) || empty( $order ) ) {

			return 'DESC';

		}



		if ( 'ASC' === strtoupper( $order ) ) {

			return 'ASC';

		} else {

			return 'DESC';

		}

	}



	/**

	 * Sets the 404 property and saves whether query is feed.

	 *

	 * @since 2.0.0

	 * @access public

	 */

	public function set_404() {

		$is_feed = $this->is_feed;



		$this->init_query_flags();

		$this->is_404 = true;



		$this->is_feed = $is_feed;

	}



	/**

	 * Retrieve query variable.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @param string $query_var Query variable key.

	 * @param mixed  $default   Value to return if the query variable is not set. Default ''.

	 * @return mixed

	 */

	public function get( $query_var, $default = '' ) {

		if ( isset( $this->query_vars[ $query_var ] ) ) {

			return $this->query_vars[ $query_var ];

		}



		return $default;

	}



	/**

	 * Set query variable.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @param string $query_var Query variable key.

	 * @param mixed $value Query variable value.

	 */

	public function set($query_var, $value) {

		$this->query_vars[$query_var] = $value;

	}



	/**

	 * Retrieve the posts based on query variables.

	 *

	 * There are a few filters and actions that can be used to modify the post

	 * database query.

	 *

	 * @since 1.5.0

	 * @access public

	 * @uses do_action_ref_array() Calls 'pre_get_posts' hook before retrieving posts.

	 *

	 * @return array List of posts.

	 */

	public function get_posts() {

		global $wpdb;



		$this->parse_query();



		/**

		 * Fires after the query variable object is created, but before the actual query is run.

		 *

		 * Note: If using conditional tags, use the method versions within the passed instance

		 * (e.g. $this->is_main_query() instead of is_main_query()). This is because the functions

		 * like is_main_query() test against the global $wp_query instance, not the passed one.

		 *

		 * @since 2.0.0

		 *

		 * @param WP_Query &$this The WP_Query instance (passed by reference).

		 */

		do_action_ref_array( 'pre_get_posts', array( &$this ) );



		// Shorthand.

		$q = &$this->query_vars;



		// Fill again in case pre_get_posts unset some vars.

		$q = $this->fill_query_vars($q);



		// Parse meta query

		$this->meta_query = new WP_Meta_Query();

		$this->meta_query->parse_query_vars( $q );



		// Set a flag if a pre_get_posts hook changed the query vars.

		$hash = md5( serialize( $this->query_vars ) );

		if ( $hash != $this->query_vars_hash ) {

			$this->query_vars_changed = true;

			$this->query_vars_hash = $hash;

		}

		unset($hash);



		// First let's clear some variables

		$distinct = '';

		$whichauthor = '';

		$whichmimetype = '';

		$where = '';

		$limits = '';

		$join = '';

		$search = '';

		$groupby = '';

		$post_status_join = false;

		$page = 1;



		if ( isset( $q['caller_get_posts'] ) ) {

			_deprecated_argument( 'WP_Query', '3.1', __( '"caller_get_posts" is deprecated. Use "ignore_sticky_posts" instead.' ) );

			if ( !isset( $q['ignore_sticky_posts'] ) )

				$q['ignore_sticky_posts'] = $q['caller_get_posts'];

		}



		if ( !isset( $q['ignore_sticky_posts'] ) )

			$q['ignore_sticky_posts'] = false;



		if ( !isset($q['suppress_filters']) )

			$q['suppress_filters'] = false;



		if ( !isset($q['cache_results']) ) {

			if ( wp_using_ext_object_cache() )

				$q['cache_results'] = false;

			else

				$q['cache_results'] = true;

		}



		if ( !isset($q['update_post_term_cache']) )

			$q['update_post_term_cache'] = true;



		if ( !isset($q['update_post_meta_cache']) )

			$q['update_post_meta_cache'] = true;



		if ( !isset($q['post_type']) ) {

			if ( $this->is_search )

				$q['post_type'] = 'any';

			else

				$q['post_type'] = '';

		}

		$post_type = $q['post_type'];

		if ( empty( $q['posts_per_page'] ) ) {

			$q['posts_per_page'] = get_option( 'posts_per_page' );

		}

		if ( isset($q['showposts']) && $q['showposts'] ) {

			$q['showposts'] = (int) $q['showposts'];

			$q['posts_per_page'] = $q['showposts'];

		}

		if ( (isset($q['posts_per_archive_page']) && $q['posts_per_archive_page'] != 0) && ($this->is_archive || $this->is_search) )

			$q['posts_per_page'] = $q['posts_per_archive_page'];

		if ( !isset($q['nopaging']) ) {

			if ( $q['posts_per_page'] == -1 ) {

				$q['nopaging'] = true;

			} else {

				$q['nopaging'] = false;

			}

		}



		if ( $this->is_feed ) {

			// This overrides posts_per_page.

			if ( ! empty( $q['posts_per_rss'] ) ) {

				$q['posts_per_page'] = $q['posts_per_rss'];

			} else {

				$q['posts_per_page'] = get_option( 'posts_per_rss' );

			}

			$q['nopaging'] = false;

		}

		$q['posts_per_page'] = (int) $q['posts_per_page'];

		if ( $q['posts_per_page'] < -1 )

			$q['posts_per_page'] = abs($q['posts_per_page']);

		else if ( $q['posts_per_page'] == 0 )

			$q['posts_per_page'] = 1;



		if ( !isset($q['comments_per_page']) || $q['comments_per_page'] == 0 )

			$q['comments_per_page'] = get_option('comments_per_page');



		if ( $this->is_home && (empty($this->query) || $q['preview'] == 'true') && ( 'page' == get_option('show_on_front') ) && get_option('page_on_front') ) {

			$this->is_page = true;

			$this->is_home = false;

			$q['page_id'] = get_option('page_on_front');

		}



		if ( isset($q['page']) ) {

			$q['page'] = trim($q['page'], '/');

			$q['page'] = absint($q['page']);

		}



		// If true, forcibly turns off SQL_CALC_FOUND_ROWS even when limits are present.

		if ( isset($q['no_found_rows']) )

			$q['no_found_rows'] = (bool) $q['no_found_rows'];

		else

			$q['no_found_rows'] = false;



		switch ( $q['fields'] ) {

			case 'ids':

				$fields = "$wpdb->posts.ID";

				break;

			case 'id=>parent':

				$fields = "$wpdb->posts.ID, $wpdb->posts.post_parent";

				break;

			default:

				$fields = "$wpdb->posts.*";

		}



		if ( '' !== $q['menu_order'] )

			$where .= " AND $wpdb->posts.menu_order = " . $q['menu_order'];



		// The "m" parameter is meant for months but accepts datetimes of varying specificity

		if ( $q['m'] ) {

			$where .= " AND YEAR($wpdb->posts.post_date)=" . substr($q['m'], 0, 4);

			if ( strlen($q['m']) > 5 )

				$where .= " AND MONTH($wpdb->posts.post_date)=" . substr($q['m'], 4, 2);

			if ( strlen($q['m']) > 7 )

				$where .= " AND DAYOFMONTH($wpdb->posts.post_date)=" . substr($q['m'], 6, 2);

			if ( strlen($q['m']) > 9 )

				$where .= " AND HOUR($wpdb->posts.post_date)=" . substr($q['m'], 8, 2);

			if ( strlen($q['m']) > 11 )

				$where .= " AND MINUTE($wpdb->posts.post_date)=" . substr($q['m'], 10, 2);

			if ( strlen($q['m']) > 13 )

				$where .= " AND SECOND($wpdb->posts.post_date)=" . substr($q['m'], 12, 2);

		}



		// Handle the other individual date parameters

		$date_parameters = array();



		if ( '' !== $q['hour'] )

			$date_parameters['hour'] = $q['hour'];



		if ( '' !== $q['minute'] )

			$date_parameters['minute'] = $q['minute'];



		if ( '' !== $q['second'] )

			$date_parameters['second'] = $q['second'];



		if ( $q['year'] )

			$date_parameters['year'] = $q['year'];



		if ( $q['monthnum'] )

			$date_parameters['monthnum'] = $q['monthnum'];



		if ( $q['w'] )

			$date_parameters['week'] = $q['w'];



		if ( $q['day'] )

			$date_parameters['day'] = $q['day'];



		if ( $date_parameters ) {

			$date_query = new WP_Date_Query( array( $date_parameters ) );

			$where .= $date_query->get_sql();

		}

		unset( $date_parameters, $date_query );



		// Handle complex date queries

		if ( ! empty( $q['date_query'] ) ) {

			$this->date_query = new WP_Date_Query( $q['date_query'] );

			$where .= $this->date_query->get_sql();

		}





		// If we've got a post_type AND it's not "any" post_type.

		if ( !empty($q['post_type']) && 'any' != $q['post_type'] ) {

			foreach ( (array)$q['post_type'] as $_post_type ) {

				$ptype_obj = get_post_type_object($_post_type);

				if ( !$ptype_obj || !$ptype_obj->query_var || empty($q[ $ptype_obj->query_var ]) )

					continue;



				if ( ! $ptype_obj->hierarchical ) {

					// Non-hierarchical post types can directly use 'name'.

					$q['name'] = $q[ $ptype_obj->query_var ];

				} else {

					// Hierarchical post types will operate through 'pagename'.

					$q['pagename'] = $q[ $ptype_obj->query_var ];

					$q['name'] = '';

				}



				// Only one request for a slug is possible, this is why name & pagename are overwritten above.

				break;

			} //end foreach

			unset($ptype_obj);

		}



		if ( '' != $q['name'] ) {

			$q['name'] = sanitize_title_for_query( $q['name'] );

			$where .= " AND $wpdb->posts.post_name = '" . $q['name'] . "'";

		} elseif ( '' != $q['pagename'] ) {

			if ( isset($this->queried_object_id) ) {

				$reqpage = $this->queried_object_id;

			} else {

				if ( 'page' != $q['post_type'] ) {

					foreach ( (array)$q['post_type'] as $_post_type ) {

						$ptype_obj = get_post_type_object($_post_type);

						if ( !$ptype_obj || !$ptype_obj->hierarchical )

							continue;



						$reqpage = get_page_by_path($q['pagename'], OBJECT, $_post_type);

						if ( $reqpage )

							break;

					}

					unset($ptype_obj);

				} else {

					$reqpage = get_page_by_path($q['pagename']);

				}

				if ( !empty($reqpage) )

					$reqpage = $reqpage->ID;

				else

					$reqpage = 0;

			}



			$page_for_posts = get_option('page_for_posts');

			if  ( ('page' != get_option('show_on_front') ) || empty($page_for_posts) || ( $reqpage != $page_for_posts ) ) {

				$q['pagename'] = sanitize_title_for_query( wp_basename( $q['pagename'] ) );

				$q['name'] = $q['pagename'];

				$where .= " AND ($wpdb->posts.ID = '$reqpage')";

				$reqpage_obj = get_post( $reqpage );

				if ( is_object($reqpage_obj) && 'attachment' == $reqpage_obj->post_type ) {

					$this->is_attachment = true;

					$post_type = $q['post_type'] = 'attachment';

					$this->is_page = true;

					$q['attachment_id'] = $reqpage;

				}

			}

		} elseif ( '' != $q['attachment'] ) {

			$q['attachment'] = sanitize_title_for_query( wp_basename( $q['attachment'] ) );

			$q['name'] = $q['attachment'];

			$where .= " AND $wpdb->posts.post_name = '" . $q['attachment'] . "'";

		}





		if ( intval($q['comments_popup']) )

			$q['p'] = absint($q['comments_popup']);



		// If an attachment is requested by number, let it supersede any post number.

		if ( $q['attachment_id'] )

			$q['p'] = absint($q['attachment_id']);



		// If a post number is specified, load that post

		if ( $q['p'] ) {

			$where .= " AND {$wpdb->posts}.ID = " . $q['p'];

		} elseif ( $q['post__in'] ) {

			$post__in = implode(',', array_map( 'absint', $q['post__in'] ));

			$where .= " AND {$wpdb->posts}.ID IN ($post__in)";

		} elseif ( $q['post__not_in'] ) {

			$post__not_in = implode(',',  array_map( 'absint', $q['post__not_in'] ));

			$where .= " AND {$wpdb->posts}.ID NOT IN ($post__not_in)";

		}



		if ( is_numeric( $q['post_parent'] ) ) {

			$where .= $wpdb->prepare( " AND $wpdb->posts.post_parent = %d ", $q['post_parent'] );

		} elseif ( $q['post_parent__in'] ) {

			$post_parent__in = implode( ',', array_map( 'absint', $q['post_parent__in'] ) );

			$where .= " AND {$wpdb->posts}.post_parent IN ($post_parent__in)";

		} elseif ( $q['post_parent__not_in'] ) {

			$post_parent__not_in = implode( ',',  array_map( 'absint', $q['post_parent__not_in'] ) );

			$where .= " AND {$wpdb->posts}.post_parent NOT IN ($post_parent__not_in)";

		}



		if ( $q['page_id'] ) {

			if  ( ('page' != get_option('show_on_front') ) || ( $q['page_id'] != get_option('page_for_posts') ) ) {

				$q['p'] = $q['page_id'];

				$where = " AND {$wpdb->posts}.ID = " . $q['page_id'];

			}

		}



		// If a search pattern is specified, load the posts that match.

		if ( ! empty( $q['s'] ) ) {

			$search = $this->parse_search( $q );

		}



		/**

		 * Filter the search SQL that is used in the WHERE clause of WP_Query.

		 *

		 * @since 3.0.0

		 *

		 * @param string   $search Search SQL for WHERE clause.

		 * @param WP_Query $this   The current WP_Query object.

		 */

		$search = apply_filters_ref_array( 'posts_search', array( $search, &$this ) );



		// Taxonomies

		if ( !$this->is_singular ) {

			$this->parse_tax_query( $q );



			$clauses = $this->tax_query->get_sql( $wpdb->posts, 'ID' );



			$join .= $clauses['join'];

			$where .= $clauses['where'];

		}



		if ( $this->is_tax ) {

			if ( empty($post_type) ) {

				// Do a fully inclusive search for currently registered post types of queried taxonomies

				$post_type = array();

				$taxonomies = wp_list_pluck( $this->tax_query->queries, 'taxonomy' );

				foreach ( get_post_types( array( 'exclude_from_search' => false ) ) as $pt ) {

					$object_taxonomies = $pt === 'attachment' ? get_taxonomies_for_attachments() : get_object_taxonomies( $pt );

					if ( array_intersect( $taxonomies, $object_taxonomies ) )

						$post_type[] = $pt;

				}

				if ( ! $post_type )

					$post_type = 'any';

				elseif ( count( $post_type ) == 1 )

					$post_type = $post_type[0];



				$post_status_join = true;

			} elseif ( in_array('attachment', (array) $post_type) ) {

				$post_status_join = true;

			}

		}



		// Back-compat

		if ( !empty($this->tax_query->queries) ) {

			$tax_query_in_and = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'NOT IN' ), 'NOT' );

			if ( !empty( $tax_query_in_and ) ) {

				if ( !isset( $q['taxonomy'] ) ) {

					foreach ( $tax_query_in_and as $a_tax_query ) {

						if ( !in_array( $a_tax_query['taxonomy'], array( 'category', 'post_tag' ) ) ) {

							$q['taxonomy'] = $a_tax_query['taxonomy'];

							if ( 'slug' == $a_tax_query['field'] )

								$q['term'] = $a_tax_query['terms'][0];

							else

								$q['term_id'] = $a_tax_query['terms'][0];



							break;

						}

					}

				}



				$cat_query = wp_list_filter( $tax_query_in_and, array( 'taxonomy' => 'category' ) );

				if ( ! empty( $cat_query ) ) {

					$cat_query = reset( $cat_query );



					if ( ! empty( $cat_query['terms'][0] ) ) {

						$the_cat = get_term_by( $cat_query['field'], $cat_query['terms'][0], 'category' );

						if ( $the_cat ) {

							$this->set( 'cat', $the_cat->term_id );

							$this->set( 'category_name', $the_cat->slug );

						}

						unset( $the_cat );

					}

				}

				unset( $cat_query );



				$tag_query = wp_list_filter( $tax_query_in_and, array( 'taxonomy' => 'post_tag' ) );

				if ( ! empty( $tag_query ) ) {

					$tag_query = reset( $tag_query );



					if ( ! empty( $tag_query['terms'][0] ) ) {

						$the_tag = get_term_by( $tag_query['field'], $tag_query['terms'][0], 'post_tag' );

						if ( $the_tag )

							$this->set( 'tag_id', $the_tag->term_id );

						unset( $the_tag );

					}

				}

				unset( $tag_query );

			}

		}



		if ( !empty( $this->tax_query->queries ) || !empty( $this->meta_query->queries ) ) {

			$groupby = "{$wpdb->posts}.ID";

		}



		// Author/user stuff



		if ( ! empty( $q['author'] ) && $q['author'] != '0' ) {

			$q['author'] = addslashes_gpc( '' . urldecode( $q['author'] ) );

			$authors = array_unique( array_map( 'intval', preg_split( '/[,\s]+/', $q['author'] ) ) );

			foreach ( $authors as $author ) {

				$key = $author > 0 ? 'author__in' : 'author__not_in';

				$q[$key][] = abs( $author );

			}

			$q['author'] = implode( ',', $authors );

		}



		if ( ! empty( $q['author__not_in'] ) ) {

			$author__not_in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__not_in'] ) ) );

			$where .= " AND {$wpdb->posts}.post_author NOT IN ($author__not_in) ";

		} elseif ( ! empty( $q['author__in'] ) ) {

			$author__in = implode( ',', array_map( 'absint', array_unique( (array) $q['author__in'] ) ) );

			$where .= " AND {$wpdb->posts}.post_author IN ($author__in) ";

		}



		// Author stuff for nice URLs



		if ( '' != $q['author_name'] ) {

			if ( strpos($q['author_name'], '/') !== false ) {

				$q['author_name'] = explode('/', $q['author_name']);

				if ( $q['author_name'][ count($q['author_name'])-1 ] ) {

					$q['author_name'] = $q['author_name'][count($q['author_name'])-1]; // no trailing slash

				} else {

					$q['author_name'] = $q['author_name'][count($q['author_name'])-2]; // there was a trailing slash

				}

			}

			$q['author_name'] = sanitize_title_for_query( $q['author_name'] );

			$q['author'] = get_user_by('slug', $q['author_name']);

			if ( $q['author'] )

				$q['author'] = $q['author']->ID;

			$whichauthor .= " AND ($wpdb->posts.post_author = " . absint($q['author']) . ')';

		}



		// MIME-Type stuff for attachment browsing



		if ( isset( $q['post_mime_type'] ) && '' != $q['post_mime_type'] )

			$whichmimetype = wp_post_mime_type_where( $q['post_mime_type'], $wpdb->posts );



		$where .= $search . $whichauthor . $whichmimetype;



		if ( ! isset( $q['order'] ) ) {

			$q['order'] = 'DESC';

		} else {

			$q['order'] = $this->parse_order( $q['order'] );

		}



		// Order by.

		if ( empty( $q['orderby'] ) ) {

			/*

			 * Boolean false or empty array blanks out ORDER BY,

			 * while leaving the value unset or otherwise empty sets the default.

			 */

			if ( isset( $q['orderby'] ) && ( is_array( $q['orderby'] ) || false === $q['orderby'] ) ) {

				$orderby = '';

			} else {

				$orderby = "$wpdb->posts.post_date " . $q['order'];

			}

		} elseif ( 'none' == $q['orderby'] ) {

			$orderby = '';

		} elseif ( $q['orderby'] == 'post__in' && ! empty( $post__in ) ) {

			$orderby = "FIELD( {$wpdb->posts}.ID, $post__in )";

		} elseif ( $q['orderby'] == 'post_parent__in' && ! empty( $post_parent__in ) ) {

			$orderby = "FIELD( {$wpdb->posts}.post_parent, $post_parent__in )";

		} else {

			$orderby_array = array();

			if ( is_array( $q['orderby'] ) ) {

				foreach ( $q['orderby'] as $_orderby => $order ) {

					$orderby = addslashes_gpc( urldecode( $_orderby ) );

					$parsed  = $this->parse_orderby( $orderby );



					if ( ! $parsed ) {

						continue;

					}



					$orderby_array[] = $parsed . ' ' . $this->parse_order( $order );

				}

				$orderby = implode( ', ', $orderby_array );



			} else {

				$q['orderby'] = urldecode( $q['orderby'] );

				$q['orderby'] = addslashes_gpc( $q['orderby'] );



				foreach ( explode( ' ', $q['orderby'] ) as $i => $orderby ) {

					$parsed = $this->parse_orderby( $orderby );

					// Only allow certain values for safety.

					if ( ! $parsed ) {

						continue;

					}



					$orderby_array[] = $parsed;

				}

				$orderby = implode( ' ' . $q['order'] . ', ', $orderby_array );



				if ( empty( $orderby ) ) {

					$orderby = "$wpdb->posts.post_date ".$q['order'];

				} else {

					$orderby .= " {$q['order']}";

				}

			}

		}



		// Order search results by relevance only when another "orderby" is not specified in the query.

		if ( ! empty( $q['s'] ) ) {

			$search_orderby = '';

			if ( ! empty( $q['search_orderby_title'] ) && ( empty( $q['orderby'] ) && ! $this->is_feed ) || ( isset( $q['orderby'] ) && 'relevance' === $q['orderby'] ) )

				$search_orderby = $this->parse_search_order( $q );



			/**

			 * Filter the ORDER BY used when ordering search results.

			 *

			 * @since 3.7.0

			 *

			 * @param string   $search_orderby The ORDER BY clause.

			 * @param WP_Query $this           The current WP_Query instance.

			 */

			$search_orderby = apply_filters( 'posts_search_orderby', $search_orderby, $this );

			if ( $search_orderby )

				$orderby = $orderby ? $search_orderby . ', ' . $orderby : $search_orderby;

		}



		if ( is_array( $post_type ) && count( $post_type ) > 1 ) {

			$post_type_cap = 'multiple_post_type';

		} else {

			if ( is_array( $post_type ) )

				$post_type = reset( $post_type );

			$post_type_object = get_post_type_object( $post_type );

			if ( empty( $post_type_object ) )

				$post_type_cap = $post_type;

		}



		if ( isset( $q['post_password'] ) ) {

			$where .= $wpdb->prepare( " AND $wpdb->posts.post_password = %s", $q['post_password'] );

			if ( empty( $q['perm'] ) ) {

				$q['perm'] = 'readable';

			}

		} elseif ( isset( $q['has_password'] ) ) {

			$where .= sprintf( " AND $wpdb->posts.post_password %s ''", $q['has_password'] ? '!=' : '=' );

		}



		if ( 'any' == $post_type ) {

			$in_search_post_types = get_post_types( array('exclude_from_search' => false) );

			if ( empty( $in_search_post_types ) )

				$where .= ' AND 1=0 ';

			else

				$where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')";

		} elseif ( !empty( $post_type ) && is_array( $post_type ) ) {

			$where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $post_type) . "')";

		} elseif ( ! empty( $post_type ) ) {

			$where .= " AND $wpdb->posts.post_type = '$post_type'";

			$post_type_object = get_post_type_object ( $post_type );

		} elseif ( $this->is_attachment ) {

			$where .= " AND $wpdb->posts.post_type = 'attachment'";

			$post_type_object = get_post_type_object ( 'attachment' );

		} elseif ( $this->is_page ) {

			$where .= " AND $wpdb->posts.post_type = 'page'";

			$post_type_object = get_post_type_object ( 'page' );

		} else {

			$where .= " AND $wpdb->posts.post_type = 'post'";

			$post_type_object = get_post_type_object ( 'post' );

		}



		$edit_cap = 'edit_post';

		$read_cap = 'read_post';



		if ( ! empty( $post_type_object ) ) {

			$edit_others_cap = $post_type_object->cap->edit_others_posts;

			$read_private_cap = $post_type_object->cap->read_private_posts;

		} else {

			$edit_others_cap = 'edit_others_' . $post_type_cap . 's';

			$read_private_cap = 'read_private_' . $post_type_cap . 's';

		}



		$user_id = get_current_user_id();



		if ( ! empty( $q['post_status'] ) ) {

			$statuswheres = array();

			$q_status = $q['post_status'];

			if ( ! is_array( $q_status ) )

				$q_status = explode(',', $q_status);

			$r_status = array();

			$p_status = array();

			$e_status = array();

			if ( in_array( 'any', $q_status ) ) {

				foreach ( get_post_stati( array( 'exclude_from_search' => true ) ) as $status ) {

					if ( ! in_array( $status, $q_status ) ) {

						$e_status[] = "$wpdb->posts.post_status <> '$status'";

					}

				}

			} else {

				foreach ( get_post_stati() as $status ) {

					if ( in_array( $status, $q_status ) ) {

						if ( 'private' == $status )

							$p_status[] = "$wpdb->posts.post_status = '$status'";

						else

							$r_status[] = "$wpdb->posts.post_status = '$status'";

					}

				}

			}



			if ( empty($q['perm'] ) || 'readable' != $q['perm'] ) {

				$r_status = array_merge($r_status, $p_status);

				unset($p_status);

			}



			if ( !empty($e_status) ) {

				$statuswheres[] = "(" . join( ' AND ', $e_status ) . ")";

			}

			if ( !empty($r_status) ) {

				if ( !empty($q['perm'] ) && 'editable' == $q['perm'] && !current_user_can($edit_others_cap) )

					$statuswheres[] = "($wpdb->posts.post_author = $user_id " . "AND (" . join( ' OR ', $r_status ) . "))";

				else

					$statuswheres[] = "(" . join( ' OR ', $r_status ) . ")";

			}

			if ( !empty($p_status) ) {

				if ( !empty($q['perm'] ) && 'readable' == $q['perm'] && !current_user_can($read_private_cap) )

					$statuswheres[] = "($wpdb->posts.post_author = $user_id " . "AND (" . join( ' OR ', $p_status ) . "))";

				else

					$statuswheres[] = "(" . join( ' OR ', $p_status ) . ")";

			}

			if ( $post_status_join ) {

				$join .= " LEFT JOIN $wpdb->posts AS p2 ON ($wpdb->posts.post_parent = p2.ID) ";

				foreach ( $statuswheres as $index => $statuswhere )

					$statuswheres[$index] = "($statuswhere OR ($wpdb->posts.post_status = 'inherit' AND " . str_replace($wpdb->posts, 'p2', $statuswhere) . "))";

			}

			$where_status = implode( ' OR ', $statuswheres );

			if ( ! empty( $where_status ) ) {

				$where .= " AND ($where_status)";

			}

		} elseif ( !$this->is_singular ) {

			$where .= " AND ($wpdb->posts.post_status = 'publish'";



			// Add public states.

			$public_states = get_post_stati( array('public' => true) );

			foreach ( (array) $public_states as $state ) {

				if ( 'publish' == $state ) // Publish is hard-coded above.

					continue;

				$where .= " OR $wpdb->posts.post_status = '$state'";

			}



			if ( $this->is_admin ) {

				// Add protected states that should show in the admin all list.

				$admin_all_states = get_post_stati( array('protected' => true, 'show_in_admin_all_list' => true) );

				foreach ( (array) $admin_all_states as $state )

					$where .= " OR $wpdb->posts.post_status = '$state'";

			}



			if ( is_user_logged_in() ) {

				// Add private states that are limited to viewing by the author of a post or someone who has caps to read private states.

				$private_states = get_post_stati( array('private' => true) );

				foreach ( (array) $private_states as $state )

					$where .= current_user_can( $read_private_cap ) ? " OR $wpdb->posts.post_status = '$state'" : " OR $wpdb->posts.post_author = $user_id AND $wpdb->posts.post_status = '$state'";

			}



			$where .= ')';

		}



		if ( !empty( $this->meta_query->queries ) ) {

			$clauses = $this->meta_query->get_sql( 'post', $wpdb->posts, 'ID', $this );

			$join .= $clauses['join'];

			$where .= $clauses['where'];

		}



		/*

		 * Apply filters on where and join prior to paging so that any

		 * manipulations to them are reflected in the paging by day queries.

		 */

		if ( !$q['suppress_filters'] ) {

			/**

			 * Filter the WHERE clause of the query.

			 *

			 * @since 1.5.0

			 *

			 * @param string   $where The WHERE clause of the query.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$where = apply_filters_ref_array( 'posts_where', array( $where, &$this ) );



			/**

			 * Filter the JOIN clause of the query.

			 *

			 * @since 1.5.0

			 *

			 * @param string   $where The JOIN clause of the query.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$join = apply_filters_ref_array( 'posts_join', array( $join, &$this ) );

		}



		// Paging

		if ( empty($q['nopaging']) && !$this->is_singular ) {

			$page = absint($q['paged']);

			if ( !$page )

				$page = 1;



			if ( empty($q['offset']) ) {

				$pgstrt = absint( ( $page - 1 ) * $q['posts_per_page'] ) . ', ';

			} else { // we're ignoring $page and using 'offset'

				$q['offset'] = absint($q['offset']);

				$pgstrt = $q['offset'] . ', ';

			}

			$limits = 'LIMIT ' . $pgstrt . $q['posts_per_page'];

		}



		// Comments feeds

		if ( $this->is_comment_feed && ! $this->is_singular ) {

			if ( $this->is_archive || $this->is_search ) {

				$cjoin = "JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) $join ";

				$cwhere = "WHERE comment_approved = '1' $where";

				$cgroupby = "$wpdb->comments.comment_id";

			} else { // Other non singular e.g. front

				$cjoin = "JOIN $wpdb->posts ON ( $wpdb->comments.comment_post_ID = $wpdb->posts.ID )";

				$cwhere = "WHERE post_status = 'publish' AND comment_approved = '1'";

				$cgroupby = '';

			}



			if ( !$q['suppress_filters'] ) {

				/**

				 * Filter the JOIN clause of the comments feed query before sending.

				 *

				 * @since 2.2.0

				 *

				 * @param string   $cjoin The JOIN clause of the query.

				 * @param WP_Query &$this The WP_Query instance (passed by reference).

				 */

				$cjoin = apply_filters_ref_array( 'comment_feed_join', array( $cjoin, &$this ) );



				/**

				 * Filter the WHERE clause of the comments feed query before sending.

				 *

				 * @since 2.2.0

				 *

				 * @param string   $cwhere The WHERE clause of the query.

				 * @param WP_Query &$this  The WP_Query instance (passed by reference).

				 */

				$cwhere = apply_filters_ref_array( 'comment_feed_where', array( $cwhere, &$this ) );



				/**

				 * Filter the GROUP BY clause of the comments feed query before sending.

				 *

				 * @since 2.2.0

				 *

				 * @param string   $cgroupby The GROUP BY clause of the query.

				 * @param WP_Query &$this    The WP_Query instance (passed by reference).

				 */

				$cgroupby = apply_filters_ref_array( 'comment_feed_groupby', array( $cgroupby, &$this ) );



				/**

				 * Filter the ORDER BY clause of the comments feed query before sending.

				 *

				 * @since 2.8.0

				 *

				 * @param string   $corderby The ORDER BY clause of the query.

				 * @param WP_Query &$this    The WP_Query instance (passed by reference).

				 */

				$corderby = apply_filters_ref_array( 'comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );



				/**

				 * Filter the LIMIT clause of the comments feed query before sending.

				 *

				 * @since 2.8.0

				 *

				 * @param string   $climits The JOIN clause of the query.

				 * @param WP_Query &$this   The WP_Query instance (passed by reference).

				 */

				$climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );

			}

			$cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';

			$corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';



			$this->comments = (array) $wpdb->get_results("SELECT $distinct $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits");

			$this->comment_count = count($this->comments);



			$post_ids = array();



			foreach ( $this->comments as $comment )

				$post_ids[] = (int) $comment->comment_post_ID;



			$post_ids = join(',', $post_ids);

			$join = '';

			if ( $post_ids )

				$where = "AND $wpdb->posts.ID IN ($post_ids) ";

			else

				$where = "AND 0";

		}



		$pieces = array( 'where', 'groupby', 'join', 'orderby', 'distinct', 'fields', 'limits' );



		/*

		 * Apply post-paging filters on where and join. Only plugins that

		 * manipulate paging queries should use these hooks.

		 */

		if ( !$q['suppress_filters'] ) {

			/**

			 * Filter the WHERE clause of the query.

			 *

			 * Specifically for manipulating paging queries.

			 *

			 * @since 1.5.0

			 *

			 * @param string   $where The WHERE clause of the query.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$where = apply_filters_ref_array( 'posts_where_paged', array( $where, &$this ) );



			/**

			 * Filter the GROUP BY clause of the query.

			 *

			 * @since 2.0.0

			 *

			 * @param string   $groupby The GROUP BY clause of the query.

			 * @param WP_Query &$this   The WP_Query instance (passed by reference).

			 */

			$groupby = apply_filters_ref_array( 'posts_groupby', array( $groupby, &$this ) );



			/**

			 * Filter the JOIN clause of the query.

			 *

			 * Specifically for manipulating paging queries.

			 *

			 * @since 1.5.0

			 *

			 * @param string   $join  The JOIN clause of the query.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$join = apply_filters_ref_array( 'posts_join_paged', array( $join, &$this ) );



			/**

			 * Filter the ORDER BY clause of the query.

			 *

			 * @since 1.5.1

			 *

			 * @param string   $orderby The ORDER BY clause of the query.

			 * @param WP_Query &$this   The WP_Query instance (passed by reference).

			 */

			$orderby = apply_filters_ref_array( 'posts_orderby', array( $orderby, &$this ) );



			/**

			 * Filter the DISTINCT clause of the query.

			 *

			 * @since 2.1.0

			 *

			 * @param string   $distinct The DISTINCT clause of the query.

			 * @param WP_Query &$this    The WP_Query instance (passed by reference).

			 */

			$distinct = apply_filters_ref_array( 'posts_distinct', array( $distinct, &$this ) );



			/**

			 * Filter the LIMIT clause of the query.

			 *

			 * @since 2.1.0

			 *

			 * @param string   $limits The LIMIT clause of the query.

			 * @param WP_Query &$this  The WP_Query instance (passed by reference).

			 */

			$limits = apply_filters_ref_array( 'post_limits', array( $limits, &$this ) );



			/**

			 * Filter the SELECT clause of the query.

			 *

			 * @since 2.1.0

			 *

			 * @param string   $fields The SELECT clause of the query.

			 * @param WP_Query &$this  The WP_Query instance (passed by reference).

			 */

			$fields = apply_filters_ref_array( 'posts_fields', array( $fields, &$this ) );



			/**

			 * Filter all query clauses at once, for convenience.

			 *

			 * Covers the WHERE, GROUP BY, JOIN, ORDER BY, DISTINCT,

			 * fields (SELECT), and LIMITS clauses.

			 *

			 * @since 3.1.0

			 *

			 * @param array    $clauses The list of clauses for the query.

			 * @param WP_Query &$this   The WP_Query instance (passed by reference).

			 */

			$clauses = (array) apply_filters_ref_array( 'posts_clauses', array( compact( $pieces ), &$this ) );



			$where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : '';

			$groupby = isset( $clauses[ 'groupby' ] ) ? $clauses[ 'groupby' ] : '';

			$join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : '';

			$orderby = isset( $clauses[ 'orderby' ] ) ? $clauses[ 'orderby' ] : '';

			$distinct = isset( $clauses[ 'distinct' ] ) ? $clauses[ 'distinct' ] : '';

			$fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : '';

			$limits = isset( $clauses[ 'limits' ] ) ? $clauses[ 'limits' ] : '';

		}



		/**

		 * Fires to announce the query's current selection parameters.

		 *

		 * For use by caching plugins.

		 *

		 * @since 2.3.0

		 *

		 * @param string $selection The assembled selection query.

		 */

		do_action( 'posts_selection', $where . $groupby . $orderby . $limits . $join );



		/*

		 * Filter again for the benefit of caching plugins.

		 * Regular plugins should use the hooks above.

		 */

		if ( !$q['suppress_filters'] ) {

			/**

			 * Filter the WHERE clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $where The WHERE clause of the query.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$where = apply_filters_ref_array( 'posts_where_request', array( $where, &$this ) );



			/**

			 * Filter the GROUP BY clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $groupby The GROUP BY clause of the query.

			 * @param WP_Query &$this   The WP_Query instance (passed by reference).

			 */

			$groupby = apply_filters_ref_array( 'posts_groupby_request', array( $groupby, &$this ) );



			/**

			 * Filter the JOIN clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $join  The JOIN clause of the query.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$join = apply_filters_ref_array( 'posts_join_request', array( $join, &$this ) );



			/**

			 * Filter the ORDER BY clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $orderby The ORDER BY clause of the query.

			 * @param WP_Query &$this   The WP_Query instance (passed by reference).

			 */

			$orderby = apply_filters_ref_array( 'posts_orderby_request', array( $orderby, &$this ) );



			/**

			 * Filter the DISTINCT clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $distinct The DISTINCT clause of the query.

			 * @param WP_Query &$this    The WP_Query instance (passed by reference).

			 */

			$distinct = apply_filters_ref_array( 'posts_distinct_request', array( $distinct, &$this ) );



			/**

			 * Filter the SELECT clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $fields The SELECT clause of the query.

			 * @param WP_Query &$this  The WP_Query instance (passed by reference).

			 */

			$fields = apply_filters_ref_array( 'posts_fields_request', array( $fields, &$this ) );



			/**

			 * Filter the LIMIT clause of the query.

			 *

			 * For use by caching plugins.

			 *

			 * @since 2.5.0

			 *

			 * @param string   $limits The LIMIT clause of the query.

			 * @param WP_Query &$this  The WP_Query instance (passed by reference).

			 */

			$limits = apply_filters_ref_array( 'post_limits_request', array( $limits, &$this ) );



			/**

			 * Filter all query clauses at once, for convenience.

			 *

			 * For use by caching plugins.

			 *

			 * Covers the WHERE, GROUP BY, JOIN, ORDER BY, DISTINCT,

			 * fields (SELECT), and LIMITS clauses.

			 *

			 * @since 3.1.0

			 *

			 * @param array    $pieces The pieces of the query.

			 * @param WP_Query &$this  The WP_Query instance (passed by reference).

			 */

			$clauses = (array) apply_filters_ref_array( 'posts_clauses_request', array( compact( $pieces ), &$this ) );



			$where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : '';

			$groupby = isset( $clauses[ 'groupby' ] ) ? $clauses[ 'groupby' ] : '';

			$join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : '';

			$orderby = isset( $clauses[ 'orderby' ] ) ? $clauses[ 'orderby' ] : '';

			$distinct = isset( $clauses[ 'distinct' ] ) ? $clauses[ 'distinct' ] : '';

			$fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : '';

			$limits = isset( $clauses[ 'limits' ] ) ? $clauses[ 'limits' ] : '';

		}



		if ( ! empty($groupby) )

			$groupby = 'GROUP BY ' . $groupby;

		if ( !empty( $orderby ) )

			$orderby = 'ORDER BY ' . $orderby;



		$found_rows = '';

		if ( !$q['no_found_rows'] && !empty($limits) )

			$found_rows = 'SQL_CALC_FOUND_ROWS';



		$this->request = $old_request = "SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";



		if ( !$q['suppress_filters'] ) {

			/**

			 * Filter the completed SQL query before sending.

			 *

			 * @since 2.0.0

			 *

			 * @param array    $request The complete SQL query.

			 * @param WP_Query &$this   The WP_Query instance (passed by reference).

			 */

			$this->request = apply_filters_ref_array( 'posts_request', array( $this->request, &$this ) );

		}



		if ( 'ids' == $q['fields'] ) {

			$this->posts = $wpdb->get_col( $this->request );

			$this->post_count = count( $this->posts );

			$this->set_found_posts( $q, $limits );



			return array_map( 'intval', $this->posts );

		}



		if ( 'id=>parent' == $q['fields'] ) {

			$this->posts = $wpdb->get_results( $this->request );

			$this->post_count = count( $this->posts );

			$this->set_found_posts( $q, $limits );



			$r = array();

			foreach ( $this->posts as $post ) {

				$r[ (int) $post->ID ] = (int) $post->post_parent;

			}

			return $r;

		}



		$split_the_query = ( $old_request == $this->request && "$wpdb->posts.*" == $fields && !empty( $limits ) && $q['posts_per_page'] < 500 );



		/**

		 * Filter whether to split the query.

		 *

		 * Splitting the query will cause it to fetch just the IDs of the found posts

		 * (and then individually fetch each post by ID), rather than fetching every

		 * complete row at once. One massive result vs. many small results.

		 *

		 * @since 3.4.0

		 *

		 * @param bool     $split_the_query Whether or not to split the query.

		 * @param WP_Query $this            The WP_Query instance.

		 */

		$split_the_query = apply_filters( 'split_the_query', $split_the_query, $this );



		if ( $split_the_query ) {

			// First get the IDs and then fill in the objects



			$this->request = "SELECT $found_rows $distinct $wpdb->posts.ID FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";



			/**

			 * Filter the Post IDs SQL request before sending.

			 *

			 * @since 3.4.0

			 *

			 * @param string   $request The post ID request.

			 * @param WP_Query $this    The WP_Query instance.

			 */

			$this->request = apply_filters( 'posts_request_ids', $this->request, $this );



			$ids = $wpdb->get_col( $this->request );



			if ( $ids ) {

				$this->posts = $ids;

				$this->set_found_posts( $q, $limits );

				_prime_post_caches( $ids, $q['update_post_term_cache'], $q['update_post_meta_cache'] );

			} else {

				$this->posts = array();

			}

		} else {

			$this->posts = $wpdb->get_results( $this->request );

			$this->set_found_posts( $q, $limits );

		}



		// Convert to WP_Post objects

		if ( $this->posts )

			$this->posts = array_map( 'get_post', $this->posts );



		if ( ! $q['suppress_filters'] ) {

			/**

			 * Filter the raw post results array, prior to status checks.

			 *

			 * @since 2.3.0

			 *

			 * @param array    $posts The post results array.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$this->posts = apply_filters_ref_array( 'posts_results', array( $this->posts, &$this ) );

		}



		if ( !empty($this->posts) && $this->is_comment_feed && $this->is_singular ) {

			/** This filter is documented in wp-includes/query.php */

			$cjoin = apply_filters_ref_array( 'comment_feed_join', array( '', &$this ) );



			/** This filter is documented in wp-includes/query.php */

			$cwhere = apply_filters_ref_array( 'comment_feed_where', array( "WHERE comment_post_ID = '{$this->posts[0]->ID}' AND comment_approved = '1'", &$this ) );



			/** This filter is documented in wp-includes/query.php */

			$cgroupby = apply_filters_ref_array( 'comment_feed_groupby', array( '', &$this ) );

			$cgroupby = ( ! empty( $cgroupby ) ) ? 'GROUP BY ' . $cgroupby : '';



			/** This filter is documented in wp-includes/query.php */

			$corderby = apply_filters_ref_array( 'comment_feed_orderby', array( 'comment_date_gmt DESC', &$this ) );

			$corderby = ( ! empty( $corderby ) ) ? 'ORDER BY ' . $corderby : '';



			/** This filter is documented in wp-includes/query.php */

			$climits = apply_filters_ref_array( 'comment_feed_limits', array( 'LIMIT ' . get_option('posts_per_rss'), &$this ) );



			$comments_request = "SELECT $wpdb->comments.* FROM $wpdb->comments $cjoin $cwhere $cgroupby $corderby $climits";

			$this->comments = $wpdb->get_results($comments_request);

			$this->comment_count = count($this->comments);

		}



		// Check post status to determine if post should be displayed.

		if ( !empty($this->posts) && ($this->is_single || $this->is_page) ) {

			$status = get_post_status($this->posts[0]);

			$post_status_obj = get_post_status_object($status);

			//$type = get_post_type($this->posts[0]);

			if ( !$post_status_obj->public ) {

				if ( ! is_user_logged_in() ) {

					// User must be logged in to view unpublished posts.

					$this->posts = array();

				} else {

					if  ( $post_status_obj->protected ) {

						// User must have edit permissions on the draft to preview.

						if ( ! current_user_can($edit_cap, $this->posts[0]->ID) ) {

							$this->posts = array();

						} else {

							$this->is_preview = true;

							if ( 'future' != $status )

								$this->posts[0]->post_date = current_time('mysql');

						}

					} elseif ( $post_status_obj->private ) {

						if ( ! current_user_can($read_cap, $this->posts[0]->ID) )

							$this->posts = array();

					} else {

						$this->posts = array();

					}

				}

			}



			if ( $this->is_preview && $this->posts && current_user_can( $edit_cap, $this->posts[0]->ID ) ) {

				/**

				 * Filter the single post for preview mode.

				 *

				 * @since 2.7.0

				 *

				 * @param WP_Post  $post_preview  The Post object.

				 * @param WP_Query &$this         The WP_Query instance (passed by reference).

				 */

				$this->posts[0] = get_post( apply_filters_ref_array( 'the_preview', array( $this->posts[0], &$this ) ) );

			}

		}



		// Put sticky posts at the top of the posts array

		$sticky_posts = get_option('sticky_posts');

		if ( $this->is_home && $page <= 1 && is_array($sticky_posts) && !empty($sticky_posts) && !$q['ignore_sticky_posts'] ) {

			$num_posts = count($this->posts);

			$sticky_offset = 0;

			// Loop over posts and relocate stickies to the front.

			for ( $i = 0; $i < $num_posts; $i++ ) {

				if ( in_array($this->posts[$i]->ID, $sticky_posts) ) {

					$sticky_post = $this->posts[$i];

					// Remove sticky from current position

					array_splice($this->posts, $i, 1);

					// Move to front, after other stickies

					array_splice($this->posts, $sticky_offset, 0, array($sticky_post));

					// Increment the sticky offset. The next sticky will be placed at this offset.

					$sticky_offset++;

					// Remove post from sticky posts array

					$offset = array_search($sticky_post->ID, $sticky_posts);

					unset( $sticky_posts[$offset] );

				}

			}



			// If any posts have been excluded specifically, Ignore those that are sticky.

			if ( !empty($sticky_posts) && !empty($q['post__not_in']) )

				$sticky_posts = array_diff($sticky_posts, $q['post__not_in']);



			// Fetch sticky posts that weren't in the query results

			if ( !empty($sticky_posts) ) {

				$stickies = get_posts( array(

					'post__in' => $sticky_posts,

					'post_type' => $post_type,

					'post_status' => 'publish',

					'nopaging' => true

				) );



				foreach ( $stickies as $sticky_post ) {

					array_splice( $this->posts, $sticky_offset, 0, array( $sticky_post ) );

					$sticky_offset++;

				}

			}

		}



		if ( ! $q['suppress_filters'] ) {

			/**

			 * Filter the array of retrieved posts after they've been fetched and

			 * internally processed.

			 *

			 * @since 1.5.0

			 *

			 * @param array    $posts The array of retrieved posts.

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			$this->posts = apply_filters_ref_array( 'the_posts', array( $this->posts, &$this ) );

		}



		// Ensure that any posts added/modified via one of the filters above are

		// of the type WP_Post and are filtered.

		if ( $this->posts ) {

			$this->post_count = count( $this->posts );



			$this->posts = array_map( 'get_post', $this->posts );



			if ( $q['cache_results'] )

				update_post_caches($this->posts, $post_type, $q['update_post_term_cache'], $q['update_post_meta_cache']);



			$this->post = reset( $this->posts );

		} else {

			$this->post_count = 0;

			$this->posts = array();

		}



		return $this->posts;

	}



	/**

	 * Set up the amount of found posts and the number of pages (if limit clause was used)

	 * for the current query.

	 *

	 * @since 3.5.0

	 * @access private

	 */

	private function set_found_posts( $q, $limits ) {

		global $wpdb;



		// Bail if posts is an empty array. Continue if posts is an empty string,

		// null, or false to accommodate caching plugins that fill posts later.

		if ( $q['no_found_rows'] || ( is_array( $this->posts ) && ! $this->posts ) )

			return;



		if ( ! empty( $limits ) ) {

			/**

			 * Filter the query to run for retrieving the found posts.

			 *

			 * @since 2.1.0

			 *

			 * @param string   $found_posts The query to run to find the found posts.

			 * @param WP_Query &$this       The WP_Query instance (passed by reference).

			 */

			$this->found_posts = $wpdb->get_var( apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) ) );

		} else {

			$this->found_posts = count( $this->posts );

		}



		/**

		 * Filter the number of found posts for the query.

		 *

		 * @since 2.1.0

		 *

		 * @param int      $found_posts The number of posts found.

		 * @param WP_Query &$this       The WP_Query instance (passed by reference).

		 */

		$this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) );



		if ( ! empty( $limits ) )

			$this->max_num_pages = ceil( $this->found_posts / $q['posts_per_page'] );

	}



	/**

	 * Set up the next post and iterate current post index.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @return WP_Post Next post.

	 */

	public function next_post() {



		$this->current_post++;



		$this->post = $this->posts[$this->current_post];

		return $this->post;

	}



	/**

	 * Sets up the current post.

	 *

	 * Retrieves the next post, sets up the post, sets the 'in the loop'

	 * property to true.

	 *

	 * @since 1.5.0

	 * @access public

	 * @uses $post

	 * @uses do_action_ref_array() Calls 'loop_start' if loop has just started

	 */

	public function the_post() {

		global $post;

		$this->in_the_loop = true;



		if ( $this->current_post == -1 ) // loop has just started

			/**

			 * Fires once the loop is started.

			 *

			 * @since 2.0.0

			 *

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			do_action_ref_array( 'loop_start', array( &$this ) );



		$post = $this->next_post();

		setup_postdata($post);

	}



	/**

	 * Whether there are more posts available in the loop.

	 *

	 * Calls action 'loop_end', when the loop is complete.

	 *

	 * @since 1.5.0

	 * @access public

	 * @uses do_action_ref_array() Calls 'loop_end' if loop is ended

	 *

	 * @return bool True if posts are available, false if end of loop.

	 */

	public function have_posts() {

		if ( $this->current_post + 1 < $this->post_count ) {

			return true;

		} elseif ( $this->current_post + 1 == $this->post_count && $this->post_count > 0 ) {

			/**

			 * Fires once the loop has ended.

			 *

			 * @since 2.0.0

			 *

			 * @param WP_Query &$this The WP_Query instance (passed by reference).

			 */

			do_action_ref_array( 'loop_end', array( &$this ) );

			// Do some cleaning up after the loop

			$this->rewind_posts();

		}



		$this->in_the_loop = false;

		return false;

	}



	/**

	 * Rewind the posts and reset post index.

	 *

	 * @since 1.5.0

	 * @access public

	 */

	public function rewind_posts() {

		$this->current_post = -1;

		if ( $this->post_count > 0 ) {

			$this->post = $this->posts[0];

		}

	}



	/**

	 * Iterate current comment index and return comment object.

	 *

	 * @since 2.2.0

	 * @access public

	 *

	 * @return object Comment object.

	 */

	public function next_comment() {

		$this->current_comment++;



		$this->comment = $this->comments[$this->current_comment];

		return $this->comment;

	}



	/**

	 * Sets up the current comment.

	 *

	 * @since 2.2.0

	 * @access public

	 * @global object $comment Current comment.

	 * @uses do_action() Calls 'comment_loop_start' hook when first comment is processed.

	 */

	public function the_comment() {

		global $comment;



		$comment = $this->next_comment();



		if ( $this->current_comment == 0 ) {

			/**

			 * Fires once the comment loop is started.

			 *

			 * @since 2.2.0

			 */

			do_action( 'comment_loop_start' );

		}

	}



	/**

	 * Whether there are more comments available.

	 *

	 * Automatically rewinds comments when finished.

	 *

	 * @since 2.2.0

	 * @access public

	 *

	 * @return bool True, if more comments. False, if no more posts.

	 */

	public function have_comments() {

		if ( $this->current_comment + 1 < $this->comment_count ) {

			return true;

		} elseif ( $this->current_comment + 1 == $this->comment_count ) {

			$this->rewind_comments();

		}



		return false;

	}



	/**

	 * Rewind the comments, resets the comment index and comment to first.

	 *

	 * @since 2.2.0

	 * @access public

	 */

	public function rewind_comments() {

		$this->current_comment = -1;

		if ( $this->comment_count > 0 ) {

			$this->comment = $this->comments[0];

		}

	}



	/**

	 * Sets up the WordPress query by parsing query string.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @param string $query URL query string.

	 * @return array List of posts.

	 */

	public function query( $query ) {

		$this->init();

		$this->query = $this->query_vars = wp_parse_args( $query );

		return $this->get_posts();

	}



	/**

	 * Retrieve queried object.

	 *

	 * If queried object is not set, then the queried object will be set from

	 * the category, tag, taxonomy, posts page, single post, page, or author

	 * query variable. After it is set up, it will be returned.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @return object

	 */

	public function get_queried_object() {

		if ( isset($this->queried_object) )

			return $this->queried_object;



		$this->queried_object = null;

		$this->queried_object_id = 0;



		if ( $this->is_category || $this->is_tag || $this->is_tax ) {

			if ( $this->is_category ) {

				if ( $this->get( 'cat' ) ) {

					$term = get_term( $this->get( 'cat' ), 'category' );

				} elseif ( $this->get( 'category_name' ) ) {

					$term = get_term_by( 'slug', $this->get( 'category_name' ), 'category' );

				}

			} elseif ( $this->is_tag ) {

				if ( $this->get( 'tag_id' ) ) {

					$term = get_term( $this->get( 'tag_id' ), 'post_tag' );

				} elseif ( $this->get( 'tag' ) ) {

					$term = get_term_by( 'slug', $this->get( 'tag' ), 'post_tag' );

				}

			} else {

				$tax_query_in_and = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'NOT IN' ), 'NOT' );

				$query = reset( $tax_query_in_and );



				if ( $query['terms'] ) {

					if ( 'term_id' == $query['field'] ) {

						$term = get_term( reset( $query['terms'] ), $query['taxonomy'] );

					} else {

						$term = get_term_by( $query['field'], reset( $query['terms'] ), $query['taxonomy'] );

					}

				}

			}



			if ( ! empty( $term ) && ! is_wp_error( $term ) )  {

				$this->queried_object = $term;

				$this->queried_object_id = (int) $term->term_id;



				if ( $this->is_category && 'category' === $this->queried_object->taxonomy )

					_make_cat_compat( $this->queried_object );

			}

		} elseif ( $this->is_post_type_archive ) {

			$post_type = $this->get( 'post_type' );

			if ( is_array( $post_type ) )

				$post_type = reset( $post_type );

			$this->queried_object = get_post_type_object( $post_type );

		} elseif ( $this->is_posts_page ) {

			$page_for_posts = get_option('page_for_posts');

			$this->queried_object = get_post( $page_for_posts );

			$this->queried_object_id = (int) $this->queried_object->ID;

		} elseif ( $this->is_singular && ! empty( $this->post ) ) {

			$this->queried_object = $this->post;

			$this->queried_object_id = (int) $this->post->ID;

		} elseif ( $this->is_author ) {

			$this->queried_object_id = (int) $this->get('author');

			$this->queried_object = get_userdata( $this->queried_object_id );

		}



		return $this->queried_object;

	}



	/**

	 * Retrieve ID of the current queried object.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @return int

	 */

	public function get_queried_object_id() {

		$this->get_queried_object();



		if ( isset($this->queried_object_id) ) {

			return $this->queried_object_id;

		}



		return 0;

	}



	/**

	 * Constructor.

	 *

	 * Sets up the WordPress query, if parameter is not empty.

	 *

	 * @since 1.5.0

	 * @access public

	 *

	 * @param string $query URL query string.

	 * @return WP_Query

	 */

	public function __construct($query = '') {

		if ( ! empty($query) ) {

			$this->query($query);

		}

	}



	/**

	 * Make private properties readable for backwards compatibility.

	 *

	 * @since 4.0.0

	 * @access public

	 *

	 * @param string $name Property to get.

	 * @return mixed Property.

	 */

	public function __get( $name ) {

		return $this->$name;

	}



	/**

	 * Make private properties settable for backwards compatibility.

	 *

	 * @since 4.0.0

	 * @access public

	 *

	 * @param string $name Property to check if set.

	 * @return bool Whether the property is set.

	 */

	public function __isset( $name ) {

		return isset( $this->$name );

	}



	/**

	 * Make private properties settable for backwards compatibility.

	 *

	 * @since 4.0.0

	 * @access public

	 *

	 * @param string $name Property to unset.

	 */

	public function __unset( $name ) {

		unset( $this->$name );

	}



	/**

	 * Make private/protected methods readable for backwards compatibility.

	 *

	 * @since 4.0.0

	 * @access public

	 *

	 * @param callable $name      Method to call.

	 * @param array    $arguments Arguments to pass when calling.

	 * @return mixed|bool Return value of the callback, otherwise false.

	 */

	public function __call( $name, $arguments ) {

		return call_user_func_array( array( $this, $name ), $arguments );

	}



	/**

 	 * Is the query for an existing archive page?

 	 *

 	 * Month, Year, Category, Author, Post Type archive...

	 *

 	 * @since 3.1.0

 	 *

 	 * @return bool

 	 */

	public function is_archive() {

		return (bool) $this->is_archive;

	}



	/**

	 * Is the query for an existing post type archive page?

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $post_types Optional. Post type or array of posts types to check against.

	 * @return bool

	 */

	public function is_post_type_archive( $post_types = '' ) {

		if ( empty( $post_types ) || ! $this->is_post_type_archive )

			return (bool) $this->is_post_type_archive;



		$post_type = $this->get( 'post_type' );

		if ( is_array( $post_type ) )

			$post_type = reset( $post_type );

		$post_type_object = get_post_type_object( $post_type );



		return in_array( $post_type_object->name, (array) $post_types );

	}



	/**

	 * Is the query for an existing attachment page?

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $attachment Attachment ID, title, slug, or array of such.

	 * @return bool

	 */

	public function is_attachment( $attachment = '' ) {

		if ( ! $this->is_attachment ) {

			return false;

		}



		if ( empty( $attachment ) ) {

			return true;

		}



		$attachment = (array) $attachment;



		$post_obj = $this->get_queried_object();



		if ( in_array( $post_obj->ID, $attachment ) ) {

			return true;

		} elseif ( in_array( $post_obj->post_title, $attachment ) ) {

			return true;

		} elseif ( in_array( $post_obj->post_name, $attachment ) ) {

			return true;

		}

		return false;

	}



	/**

	 * Is the query for an existing author archive page?

	 *

	 * If the $author parameter is specified, this function will additionally

	 * check if the query is for one of the authors specified.

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $author Optional. User ID, nickname, nicename, or array of User IDs, nicknames, and nicenames

	 * @return bool

	 */

	public function is_author( $author = '' ) {

		if ( !$this->is_author )

			return false;



		if ( empty($author) )

			return true;



		$author_obj = $this->get_queried_object();



		$author = (array) $author;



		if ( in_array( $author_obj->ID, $author ) )

			return true;

		elseif ( in_array( $author_obj->nickname, $author ) )

			return true;

		elseif ( in_array( $author_obj->user_nicename, $author ) )

			return true;



		return false;

	}



	/**

	 * Is the query for an existing category archive page?

	 *

	 * If the $category parameter is specified, this function will additionally

	 * check if the query is for one of the categories specified.

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $category Optional. Category ID, name, slug, or array of Category IDs, names, and slugs.

	 * @return bool

	 */

	public function is_category( $category = '' ) {

		if ( !$this->is_category )

			return false;



		if ( empty($category) )

			return true;



		$cat_obj = $this->get_queried_object();



		$category = (array) $category;



		if ( in_array( $cat_obj->term_id, $category ) )

			return true;

		elseif ( in_array( $cat_obj->name, $category ) )

			return true;

		elseif ( in_array( $cat_obj->slug, $category ) )

			return true;



		return false;

	}



	/**

	 * Is the query for an existing tag archive page?

	 *

	 * If the $tag parameter is specified, this function will additionally

	 * check if the query is for one of the tags specified.

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $tag Optional. Tag ID, name, slug, or array of Tag IDs, names, and slugs.

	 * @return bool

	 */

	public function is_tag( $tag = '' ) {

		if ( ! $this->is_tag )

			return false;



		if ( empty( $tag ) )

			return true;



		$tag_obj = $this->get_queried_object();



		$tag = (array) $tag;



		if ( in_array( $tag_obj->term_id, $tag ) )

			return true;

		elseif ( in_array( $tag_obj->name, $tag ) )

			return true;

		elseif ( in_array( $tag_obj->slug, $tag ) )

			return true;



		return false;

	}



	/**

	 * Is the query for an existing taxonomy archive page?

	 *

	 * If the $taxonomy parameter is specified, this function will additionally

	 * check if the query is for that specific $taxonomy.

	 *

	 * If the $term parameter is specified in addition to the $taxonomy parameter,

	 * this function will additionally check if the query is for one of the terms

	 * specified.

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $taxonomy Optional. Taxonomy slug or slugs.

	 * @param mixed $term. Optional. Term ID, name, slug or array of Term IDs, names, and slugs.

	 * @return bool

	 */

	public function is_tax( $taxonomy = '', $term = '' ) {

		global $wp_taxonomies;



		if ( !$this->is_tax )

			return false;



		if ( empty( $taxonomy ) )

			return true;



		$queried_object = $this->get_queried_object();

		$tax_array = array_intersect( array_keys( $wp_taxonomies ), (array) $taxonomy );

		$term_array = (array) $term;



		// Check that the taxonomy matches.

		if ( ! ( isset( $queried_object->taxonomy ) && count( $tax_array ) && in_array( $queried_object->taxonomy, $tax_array ) ) )

			return false;



		// Only a Taxonomy provided.

		if ( empty( $term ) )

			return true;



		return isset( $queried_object->term_id ) &&

			count( array_intersect(

				array( $queried_object->term_id, $queried_object->name, $queried_object->slug ),

				$term_array

			) );

	}



	/**

	 * Whether the current URL is within the comments popup window.

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_comments_popup() {

		return (bool) $this->is_comments_popup;

	}



	/**

	 * Is the query for an existing date archive?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_date() {

		return (bool) $this->is_date;

	}



	/**

	 * Is the query for an existing day archive?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_day() {

		return (bool) $this->is_day;

	}



	/**

	 * Is the query for a feed?

	 *

	 * @since 3.1.0

	 *

	 * @param string|array $feeds Optional feed types to check.

	 * @return bool

	 */

	public function is_feed( $feeds = '' ) {

		if ( empty( $feeds ) || ! $this->is_feed )

			return (bool) $this->is_feed;

		$qv = $this->get( 'feed' );

		if ( 'feed' == $qv )

			$qv = get_default_feed();

		return in_array( $qv, (array) $feeds );

	}



	/**

	 * Is the query for a comments feed?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_comment_feed() {

		return (bool) $this->is_comment_feed;

	}



	/**

	 * Is the query for the front page of the site?

	 *

	 * This is for what is displayed at your site's main URL.

	 *

	 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_on_front'.

	 *

	 * If you set a static page for the front page of your site, this function will return

	 * true when viewing that page.

	 *

	 * Otherwise the same as @see WP_Query::is_home()

	 *

	 * @since 3.1.0

	 * @uses is_home()

	 * @uses get_option()

	 *

	 * @return bool True, if front of site.

	 */

	public function is_front_page() {

		// most likely case

		if ( 'posts' == get_option( 'show_on_front') && $this->is_home() )

			return true;

		elseif ( 'page' == get_option( 'show_on_front') && get_option( 'page_on_front' ) && $this->is_page( get_option( 'page_on_front' ) ) )

			return true;

		else

			return false;

	}



	/**

	 * Is the query for the blog homepage?

	 *

	 * This is the page which shows the time based blog content of your site.

	 *

	 * Depends on the site's "Front page displays" Reading Settings 'show_on_front' and 'page_for_posts'.

	 *

	 * If you set a static page for the front page of your site, this function will return

	 * true only on the page you set as the "Posts page".

	 *

	 * @see WP_Query::is_front_page()

	 *

	 * @since 3.1.0

	 *

	 * @return bool True if blog view homepage.

	 */

	public function is_home() {

		return (bool) $this->is_home;

	}



	/**

	 * Is the query for an existing month archive?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_month() {

		return (bool) $this->is_month;

	}



	/**

	 * Is the query for an existing single page?

	 *

	 * If the $page parameter is specified, this function will additionally

	 * check if the query is for one of the pages specified.

	 *

	 * @see WP_Query::is_single()

	 * @see WP_Query::is_singular()

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $page Page ID, title, slug, path, or array of such.

	 * @return bool

	 */

	public function is_page( $page = '' ) {

		if ( !$this->is_page )

			return false;



		if ( empty( $page ) )

			return true;



		$page_obj = $this->get_queried_object();



		$page = (array) $page;



		if ( in_array( $page_obj->ID, $page ) ) {

			return true;

		} elseif ( in_array( $page_obj->post_title, $page ) ) {

			return true;

		} else if ( in_array( $page_obj->post_name, $page ) ) {

			return true;

		} else {

			foreach ( $page as $pagepath ) {

				if ( ! strpos( $pagepath, '/' ) ) {

					continue;

				}

				$pagepath_obj = get_page_by_path( $pagepath );



				if ( $pagepath_obj && ( $pagepath_obj->ID == $page_obj->ID ) ) {

					return true;

				}

			}

		}



		return false;

	}



	/**

	 * Is the query for paged result and not for the first page?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_paged() {

		return (bool) $this->is_paged;

	}



	/**

	 * Is the query for a post or page preview?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_preview() {

		return (bool) $this->is_preview;

	}



	/**

	 * Is the query for the robots file?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_robots() {

		return (bool) $this->is_robots;

	}



	/**

	 * Is the query for a search?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_search() {

		return (bool) $this->is_search;

	}



	/**

	 * Is the query for an existing single post?

	 *

	 * Works for any post type, except attachments and pages

	 *

	 * If the $post parameter is specified, this function will additionally

	 * check if the query is for one of the Posts specified.

	 *

	 * @see WP_Query::is_page()

	 * @see WP_Query::is_singular()

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $post Post ID, title, slug, path, or array of such.

	 * @return bool

	 */

	public function is_single( $post = '' ) {

		if ( !$this->is_single )

			return false;



		if ( empty($post) )

			return true;



		$post_obj = $this->get_queried_object();



		$post = (array) $post;



		if ( in_array( $post_obj->ID, $post ) ) {

			return true;

		} elseif ( in_array( $post_obj->post_title, $post ) ) {

			return true;

		} elseif ( in_array( $post_obj->post_name, $post ) ) {

			return true;

		} else {

			foreach ( $post as $postpath ) {

				if ( ! strpos( $postpath, '/' ) ) {

					continue;

				}

				$postpath_obj = get_page_by_path( $postpath, OBJECT, $post_obj->post_type );



				if ( $postpath_obj && ( $postpath_obj->ID == $post_obj->ID ) ) {

					return true;

				}

			}

		}

		return false;

	}



	/**

	 * Is the query for an existing single post of any post type (post, attachment, page, ... )?

	 *

	 * If the $post_types parameter is specified, this function will additionally

	 * check if the query is for one of the Posts Types specified.

	 *

	 * @see WP_Query::is_page()

	 * @see WP_Query::is_single()

	 *

	 * @since 3.1.0

	 *

	 * @param mixed $post_types Optional. Post Type or array of Post Types

	 * @return bool

	 */

	public function is_singular( $post_types = '' ) {

		if ( empty( $post_types ) || !$this->is_singular )

			return (bool) $this->is_singular;



		$post_obj = $this->get_queried_object();



		return in_array( $post_obj->post_type, (array) $post_types );

	}



	/**

	 * Is the query for a specific time?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_time() {

		return (bool) $this->is_time;

	}



	/**

	 * Is the query for a trackback endpoint call?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_trackback() {

		return (bool) $this->is_trackback;

	}



	/**

	 * Is the query for an existing year archive?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_year() {

		return (bool) $this->is_year;

	}



	/**

	 * Is the query a 404 (returns no results)?

	 *

	 * @since 3.1.0

	 *

	 * @return bool

	 */

	public function is_404() {

		return (bool) $this->is_404;

	}



	/**

	 * Is the query the main query?

	 *

	 * @since 3.3.0

	 *

	 * @return bool

	 */

	public function is_main_query() {

		global $wp_the_query;

		return $wp_the_query === $this;

	}



	/**

	 * After looping through a nested query, this function

	 * restores the $post global to the current post in this query.

	 *

	 * @since 3.7.0

	 *

	 * @return bool

	 */

	public function reset_postdata() {

		if ( ! empty( $this->post ) ) {

			$GLOBALS['post'] = $this->post;

			setup_postdata( $this->post );

		}

	}

}



/**

 * Redirect old slugs to the correct permalink.

 *

 * Attempts to find the current slug from the past slugs.

 *

 * @since 2.1.0

 * @uses $wp_query

 * @uses $wpdb

 *

 * @return null If no link is found, null is returned.

 */

function wp_old_slug_redirect() {

	global $wp_query;

	if ( is_404() && '' != $wp_query->query_vars['name'] ) :

		global $wpdb;



		// Guess the current post_type based on the query vars.

		if ( get_query_var('post_type') )

			$post_type = get_query_var('post_type');

		elseif ( !empty($wp_query->query_vars['pagename']) )

			$post_type = 'page';

		else

			$post_type = 'post';



		if ( is_array( $post_type ) ) {

			if ( count( $post_type ) > 1 )

				return;

			$post_type = array_shift( $post_type );

		}



		// Do not attempt redirect for hierarchical post types

		if ( is_post_type_hierarchical( $post_type ) )

			return;



		$query = $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta, $wpdb->posts WHERE ID = post_id AND post_type = %s AND meta_key = '_wp_old_slug' AND meta_value = %s", $post_type, $wp_query->query_vars['name']);



		// if year, monthnum, or day have been specified, make our query more precise

		// just in case there are multiple identical _wp_old_slug values

		if ( '' != $wp_query->query_vars['year'] )

			$query .= $wpdb->prepare(" AND YEAR(post_date) = %d", $wp_query->query_vars['year']);

		if ( '' != $wp_query->query_vars['monthnum'] )

			$query .= $wpdb->prepare(" AND MONTH(post_date) = %d", $wp_query->query_vars['monthnum']);

		if ( '' != $wp_query->query_vars['day'] )

			$query .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", $wp_query->query_vars['day']);



		$id = (int) $wpdb->get_var($query);



		if ( ! $id )

			return;



		$link = get_permalink($id);



		if ( !$link )

			return;



		wp_redirect( $link, 301 ); // Permanent redirect

		exit;

	endif;

}



/**

 * Set up global post data.

 *

 * @since 1.5.0

 *

 * @param object $post Post data.

 * @uses do_action_ref_array() Calls 'the_post'

 * @return bool True when finished.

 */

function setup_postdata( $post ) {

	global $id, $authordata, $currentday, $currentmonth, $page, $pages, $multipage, $more, $numpages;



	$id = (int) $post->ID;



	$authordata = get_userdata($post->post_author);



	$currentday = mysql2date('d.m.y', $post->post_date, false);

	$currentmonth = mysql2date('m', $post->post_date, false);

	$numpages = 1;

	$multipage = 0;

	$page = get_query_var('page');

	if ( ! $page )

		$page = 1;

	if ( is_single() || is_page() || is_feed() )

		$more = 1;

	$content = $post->post_content;

	if ( false !== strpos( $content, '<!--nextpage-->' ) ) {

		if ( $page > 1 )

			$more = 1;

		$content = str_replace( "\n<!--nextpage-->\n", '<!--nextpage-->', $content );

		$content = str_replace( "\n<!--nextpage-->", '<!--nextpage-->', $content );

		$content = str_replace( "<!--nextpage-->\n", '<!--nextpage-->', $content );

		// Ignore nextpage at the beginning of the content.

		if ( 0 === strpos( $content, '<!--nextpage-->' ) )

			$content = substr( $content, 15 );

		$pages = explode('<!--nextpage-->', $content);

		$numpages = count($pages);

		if ( $numpages > 1 )

			$multipage = 1;

	} else {

		$pages = array( $post->post_content );

	}



	/**

	 * Fires once the post data has been setup.

	 *

	 * @since 2.8.0

	 *

	 * @param WP_Post &$post The Post object (passed by reference).

	 */

	do_action_ref_array( 'the_post', array( &$post ) );



	return true;

}