/wp-includes/general-template.php

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<?php
/**
 * General template tags that can go anywhere in a template.
 *
 * @package WordPress
 * @subpackage Template
 */

/**
 * Load header template.
 *
 * Includes the header template for a theme or if a name is specified then a
 * specialised header will be included.
 *
 * For the parameter, if the file is called "header-special.php" then specify
 * "special".
 *
 * @since 1.5.0
 *
 * @param string $name The name of the specialised header.
 */
function get_header( $name = null ) {
	/**
	 * Fires before the header template file is loaded.
	 *
	 * The hook allows a specific header template file to be used in place of the
	 * default header template file. If your file is called header-new.php,
	 * you would specify the filename in the hook as get_header( 'new' ).
	 *
	 * @since 2.1.0
	 * @since 2.8.0 $name parameter added.
	 *
	 * @param string $name Name of the specific header file to use.
	 */
	do_action( 'get_header', $name );

	$templates = array();
	$name = (string) $name;
	if ( '' !== $name )
		$templates[] = "header-{$name}.php";

	$templates[] = 'header.php';

	// Backward compat code will be removed in a future release
	if ('' == locate_template($templates, true))
		load_template( ABSPATH . WPINC . '/theme-compat/header.php');
}

/**
 * Load footer template.
 *
 * Includes the footer template for a theme or if a name is specified then a
 * specialised footer will be included.
 *
 * For the parameter, if the file is called "footer-special.php" then specify
 * "special".
 *
 * @since 1.5.0
 *
 * @param string $name The name of the specialised footer.
 */
function get_footer( $name = null ) {
	/**
	 * Fires before the footer template file is loaded.
	 *
	 * The hook allows a specific footer template file to be used in place of the
	 * default footer template file. If your file is called footer-new.php,
	 * you would specify the filename in the hook as get_footer( 'new' ).
	 *
	 * @since 2.1.0
	 * @since 2.8.0 $name parameter added.
	 *
	 * @param string $name Name of the specific footer file to use.
	 */
	do_action( 'get_footer', $name );

	$templates = array();
	$name = (string) $name;
	if ( '' !== $name )
		$templates[] = "footer-{$name}.php";

	$templates[] = 'footer.php';

	// Backward compat code will be removed in a future release
	if ('' == locate_template($templates, true))
		load_template( ABSPATH . WPINC . '/theme-compat/footer.php');
}

/**
 * Load sidebar template.
 *
 * Includes the sidebar template for a theme or if a name is specified then a
 * specialised sidebar will be included.
 *
 * For the parameter, if the file is called "sidebar-special.php" then specify
 * "special".
 *
 * @since 1.5.0
 *
 * @param string $name The name of the specialised sidebar.
 */
function get_sidebar( $name = null ) {
	/**
	 * Fires before the sidebar template file is loaded.
	 *
	 * The hook allows a specific sidebar template file to be used in place of the
	 * default sidebar template file. If your file is called sidebar-new.php,
	 * you would specify the filename in the hook as get_sidebar( 'new' ).
	 *
	 * @since 2.2.0
	 * @since 2.8.0 $name parameter added.
	 *
	 * @param string $name Name of the specific sidebar file to use.
	 */
	do_action( 'get_sidebar', $name );

	$templates = array();
	$name = (string) $name;
	if ( '' !== $name )
		$templates[] = "sidebar-{$name}.php";

	$templates[] = 'sidebar.php';

	// Backward compat code will be removed in a future release
	if ('' == locate_template($templates, true))
		load_template( ABSPATH . WPINC . '/theme-compat/sidebar.php');
}

/**
 * Load a template part into a template
 *
 * Makes it easy for a theme to reuse sections of code in a easy to overload way
 * for child themes.
 *
 * Includes the named template part for a theme or if a name is specified then a
 * specialised part will be included. If the theme contains no {slug}.php file
 * then no template will be included.
 *
 * The template is included using require, not require_once, so you may include the
 * same template part multiple times.
 *
 * For the $name parameter, if the file is called "{slug}-special.php" then specify
 * "special".
 *
 * @since 3.0.0
 *
 * @param string $slug The slug name for the generic template.
 * @param string $name The name of the specialised template.
 */
function get_template_part( $slug, $name = null ) {
	/**
	 * Fires before the specified template part file is loaded.
	 *
	 * The dynamic portion of the hook name, `$slug`, refers to the slug name
	 * for the generic template part.
	 *
	 * @since 3.0.0
	 *
	 * @param string $slug The slug name for the generic template.
	 * @param string $name The name of the specialized template.
	 */
	do_action( "get_template_part_{$slug}", $slug, $name );

	$templates = array();
	$name = (string) $name;
	if ( '' !== $name )
		$templates[] = "{$slug}-{$name}.php";

	$templates[] = "{$slug}.php";

	locate_template($templates, true, false);
}

/**
 * Display search form.
 *
 * Will first attempt to locate the searchform.php file in either the child or
 * the parent, then load it. If it doesn't exist, then the default search form
 * will be displayed. The default search form is HTML, which will be displayed.
 * There is a filter applied to the search form HTML in order to edit or replace
 * it. The filter is 'get_search_form'.
 *
 * This function is primarily used by themes which want to hardcode the search
 * form into the sidebar and also by the search widget in WordPress.
 *
 * There is also an action that is called whenever the function is run called,
 * 'pre_get_search_form'. This can be useful for outputting JavaScript that the
 * search relies on or various formatting that applies to the beginning of the
 * search. To give a few examples of what it can be used for.
 *
 * @since 2.7.0
 *
 * @param bool $echo Default to echo and not return the form.
 * @return string|void String when $echo is false.
 */
function get_search_form( $echo = true ) {
	/**
	 * Fires before the search form is retrieved, at the start of get_search_form().
	 *
	 * @since 2.7.0 as 'get_search_form' action.
	 * @since 3.6.0
	 *
	 * @link https://core.trac.wordpress.org/ticket/19321
	 */
	do_action( 'pre_get_search_form' );

	$format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml';

	/**
	 * Filter the HTML format of the search form.
	 *
	 * @since 3.6.0
	 *
	 * @param string $format The type of markup to use in the search form.
	 *                       Accepts 'html5', 'xhtml'.
	 */
	$format = apply_filters( 'search_form_format', $format );

	$search_form_template = locate_template( 'searchform.php' );
	if ( '' != $search_form_template ) {
		ob_start();
		require( $search_form_template );
		$form = ob_get_clean();
	} else {
		if ( 'html5' == $format ) {
			$form = '<form role="search" method="get" class="search-form" action="' . esc_url( home_url( '/' ) ) . '">
				<label>
					<span class="screen-reader-text">' . _x( 'Search for:', 'label' ) . '</span>
					<input type="search" class="search-field" placeholder="' . esc_attr_x( 'Search &hellip;', 'placeholder' ) . '" value="' . get_search_query() . '" name="s" title="' . esc_attr_x( 'Search for:', 'label' ) . '" />
				</label>
				<input type="submit" class="search-submit" value="'. esc_attr_x( 'Search', 'submit button' ) .'" />
			</form>';
		} else {
			$form = '<form role="search" method="get" id="searchform" class="searchform" action="' . esc_url( home_url( '/' ) ) . '">
				<div>
					<label class="screen-reader-text" for="s">' . _x( 'Search for:', 'label' ) . '</label>
					<input type="text" value="' . get_search_query() . '" name="s" id="s" />
					<input type="submit" id="searchsubmit" value="'. esc_attr_x( 'Search', 'submit button' ) .'" />
				</div>
			</form>';
		}
	}

	/**
	 * Filter the HTML output of the search form.
	 *
	 * @since 2.7.0
	 *
	 * @param string $form The search form HTML output.
	 */
	$result = apply_filters( 'get_search_form', $form );

	if ( null === $result )
		$result = $form;

	if ( $echo )
		echo $result;
	else
		return $result;
}

/**
 * Display the Log In/Out link.
 *
 * Displays a link, which allows users to navigate to the Log In page to log in
 * or log out depending on whether they are currently logged in.
 *
 * @since 1.5.0
 *
 * @param string $redirect Optional path to redirect to on login/logout.
 * @param bool   $echo     Default to echo and not return the link.
 * @return string|void String when retrieving.
 */
function wp_loginout($redirect = '', $echo = true) {
	if ( ! is_user_logged_in() )
		$link = '<a href="' . esc_url( wp_login_url($redirect) ) . '">' . __('Log in') . '</a>';
	else
		$link = '<a href="' . esc_url( wp_logout_url($redirect) ) . '">' . __('Log out') . '</a>';

	if ( $echo ) {
		/**
		 * Filter the HTML output for the Log In/Log Out link.
		 *
		 * @since 1.5.0
		 *
		 * @param string $link The HTML link content.
		 */
		echo apply_filters( 'loginout', $link );
	} else {
		/** This filter is documented in wp-includes/general-template.php */
		return apply_filters( 'loginout', $link );
	}
}

/**
 * Returns the Log Out URL.
 *
 * Returns the URL that allows the user to log out of the site.
 *
 * @since 2.7.0
 *
 * @param string $redirect Path to redirect to on logout.
 * @return string A log out URL.
 */
function wp_logout_url($redirect = '') {
	$args = array( 'action' => 'logout' );
	if ( !empty($redirect) ) {
		$args['redirect_to'] = urlencode( $redirect );
	}

	$logout_url = add_query_arg($args, site_url('wp-login.php', 'login'));
	$logout_url = wp_nonce_url( $logout_url, 'log-out' );

	/**
	 * Filter the logout URL.
	 *
	 * @since 2.8.0
	 *
	 * @param string $logout_url The Log Out URL.
	 * @param string $redirect   Path to redirect to on logout.
	 */
	return apply_filters( 'logout_url', $logout_url, $redirect );
}

/**
 * Returns the URL that allows the user to log in to the site.
 *
 * @since 2.7.0
 *
 * @param string $redirect     Path to redirect to on login.
 * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present. Default is false.
 * @return string A log in URL.
 */
function wp_login_url($redirect = '', $force_reauth = false) {
	$login_url = site_url('wp-login.php', 'login');

	if ( !empty($redirect) )
		$login_url = add_query_arg('redirect_to', urlencode($redirect), $login_url);

	if ( $force_reauth )
		$login_url = add_query_arg('reauth', '1', $login_url);

	/**
	 * Filter the login URL.
	 *
	 * @since 2.8.0
	 * @since 4.2.0 The `$force_reauth` parameter was added.
	 *
	 * @param string $login_url    The login URL.
	 * @param string $redirect     The path to redirect to on login, if supplied.
	 * @param bool   $force_reauth Whether to force reauthorization, even if a cookie is present.
	 */
	return apply_filters( 'login_url', $login_url, $redirect, $force_reauth );
}

/**
 * Returns the URL that allows the user to register on the site.
 *
 * @since 3.6.0
 *
 * @return string User registration URL.
 */
function wp_registration_url() {
	/**
	 * Filter the user registration URL.
	 *
	 * @since 3.6.0
	 *
	 * @param string $register The user registration URL.
	 */
	return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) );
}

/**
 * Provides a simple login form for use anywhere within WordPress. By default, it echoes
 * the HTML immediately. Pass array('echo'=>false) to return the string instead.
 *
 * @since 3.0.0
 *
 * @param array $args Configuration options to modify the form output.
 * @return string|void String when retrieving.
 */
function wp_login_form( $args = array() ) {
	$defaults = array(
		'echo' => true,
		'redirect' => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], // Default redirect is back to the current page
		'form_id' => 'loginform',
		'label_username' => __( 'Username' ),
		'label_password' => __( 'Password' ),
		'label_remember' => __( 'Remember Me' ),
		'label_log_in' => __( 'Log In' ),
		'id_username' => 'user_login',
		'id_password' => 'user_pass',
		'id_remember' => 'rememberme',
		'id_submit' => 'wp-submit',
		'remember' => true,
		'value_username' => '',
		'value_remember' => false, // Set this to true to default the "Remember me" checkbox to checked
	);

	/**
	 * Filter the default login form output arguments.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_login_form()
	 *
	 * @param array $defaults An array of default login form arguments.
	 */
	$args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );

	/**
	 * Filter content to display at the top of the login form.
	 *
	 * The filter evaluates just following the opening form tag element.
	 *
	 * @since 3.0.0
	 *
	 * @param string $content Content to display. Default empty.
	 * @param array  $args    Array of login form arguments.
	 */
	$login_form_top = apply_filters( 'login_form_top', '', $args );

	/**
	 * Filter content to display in the middle of the login form.
	 *
	 * The filter evaluates just following the location where the 'login-password'
	 * field is displayed.
	 *
	 * @since 3.0.0
	 *
	 * @param string $content Content to display. Default empty.
	 * @param array  $args    Array of login form arguments.
	 */
	$login_form_middle = apply_filters( 'login_form_middle', '', $args );

	/**
	 * Filter content to display at the bottom of the login form.
	 *
	 * The filter evaluates just preceding the closing form tag element.
	 *
	 * @since 3.0.0
	 *
	 * @param string $content Content to display. Default empty.
	 * @param array  $args    Array of login form arguments.
	 */
	$login_form_bottom = apply_filters( 'login_form_bottom', '', $args );

	$form = '
		<form name="' . $args['form_id'] . '" id="' . $args['form_id'] . '" action="' . esc_url( site_url( 'wp-login.php', 'login_post' ) ) . '" method="post">
			' . $login_form_top . '
			<p class="login-username">
				<label for="' . esc_attr( $args['id_username'] ) . '">' . esc_html( $args['label_username'] ) . '</label>
				<input type="text" name="log" id="' . esc_attr( $args['id_username'] ) . '" class="input" value="' . esc_attr( $args['value_username'] ) . '" size="20" />
			</p>
			<p class="login-password">
				<label for="' . esc_attr( $args['id_password'] ) . '">' . esc_html( $args['label_password'] ) . '</label>
				<input type="password" name="pwd" id="' . esc_attr( $args['id_password'] ) . '" class="input" value="" size="20" />
			</p>
			' . $login_form_middle . '
			' . ( $args['remember'] ? '<p class="login-remember"><label><input name="rememberme" type="checkbox" id="' . esc_attr( $args['id_remember'] ) . '" value="forever"' . ( $args['value_remember'] ? ' checked="checked"' : '' ) . ' /> ' . esc_html( $args['label_remember'] ) . '</label></p>' : '' ) . '
			<p class="login-submit">
				<input type="submit" name="wp-submit" id="' . esc_attr( $args['id_submit'] ) . '" class="button-primary" value="' . esc_attr( $args['label_log_in'] ) . '" />
				<input type="hidden" name="redirect_to" value="' . esc_url( $args['redirect'] ) . '" />
			</p>
			' . $login_form_bottom . '
		</form>';

	if ( $args['echo'] )
		echo $form;
	else
		return $form;
}

/**
 * Returns the URL that allows the user to retrieve the lost password
 *
 * @since 2.8.0
 *
 * @param string $redirect Path to redirect to on login.
 * @return string Lost password URL.
 */
function wp_lostpassword_url( $redirect = '' ) {
	$args = array( 'action' => 'lostpassword' );
	if ( !empty($redirect) ) {
		$args['redirect_to'] = $redirect;
	}

	$lostpassword_url = add_query_arg( $args, network_site_url('wp-login.php', 'login') );

	/**
	 * Filter the Lost Password URL.
	 *
	 * @since 2.8.0
	 *
	 * @param string $lostpassword_url The lost password page URL.
	 * @param string $redirect         The path to redirect to on login.
	 */
	return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );
}

/**
 * Display the Registration or Admin link.
 *
 * Display a link which allows the user to navigate to the registration page if
 * not logged in and registration is enabled or to the dashboard if logged in.
 *
 * @since 1.5.0
 *
 * @param string $before Text to output before the link. Default `<li>`.
 * @param string $after  Text to output after the link. Default `</li>`.
 * @param bool   $echo   Default to echo and not return the link.
 * @return string|void String when retrieving.
 */
function wp_register( $before = '<li>', $after = '</li>', $echo = true ) {
	if ( ! is_user_logged_in() ) {
		if ( get_option('users_can_register') )
			$link = $before . '<a href="' . esc_url( wp_registration_url() ) . '">' . __('Register') . '</a>' . $after;
		else
			$link = '';
	} else {
		$link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;
	}

	/**
	 * Filter the HTML link to the Registration or Admin page.
	 *
	 * Users are sent to the admin page if logged-in, or the registration page
	 * if enabled and logged-out.
	 *
	 * @since 1.5.0
	 *
	 * @param string $link The HTML code for the link to the Registration or Admin page.
	 */
	$link = apply_filters( 'register', $link );

	if ( $echo ) {
		echo $link;
	} else {
		return $link;
	}
}

/**
 * Theme container function for the 'wp_meta' action.
 *
 * The 'wp_meta' action can have several purposes, depending on how you use it,
 * but one purpose might have been to allow for theme switching.
 *
 * @since 1.5.0
 *
 * @link https://core.trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.
 */
function wp_meta() {
	/**
	 * Fires before displaying echoed content in the sidebar.
	 *
	 * @since 1.5.0
	 */
	do_action( 'wp_meta' );
}

/**
 * Display information about the blog.
 *
 * @see get_bloginfo() For possible values for the parameter.
 * @since 0.71
 *
 * @param string $show What to display.
 */
function bloginfo( $show='' ) {
	echo get_bloginfo( $show, 'display' );
}

/**
 * Retrieve information about the blog.
 *
 * Some show parameter values are deprecated and will be removed in future
 * versions. These options will trigger the {@see _deprecated_argument()}
 * function. The deprecated blog info options are listed in the function
 * contents.
 *
 * The possible values for the 'show' parameter are listed below.
 *
 * 1. url - Blog URI to homepage.
 * 2. wpurl - Blog URI path to WordPress.
 * 3. description - Secondary title
 *
 * The feed URL options can be retrieved from 'rdf_url' (RSS 0.91),
 * 'rss_url' (RSS 1.0), 'rss2_url' (RSS 2.0), or 'atom_url' (Atom feed). The
 * comment feeds can be retrieved from the 'comments_atom_url' (Atom comment
 * feed) or 'comments_rss2_url' (RSS 2.0 comment feed).
 *
 * @since 0.71
 *
 * @global string $wp_version
 *
 * @param string $show   Blog info to retrieve.
 * @param string $filter How to filter what is retrieved.
 * @return string Mostly string values, might be empty.
 */
function get_bloginfo( $show = '', $filter = 'raw' ) {
	switch( $show ) {
		case 'home' : // DEPRECATED
		case 'siteurl' : // DEPRECATED
			_deprecated_argument( __FUNCTION__, '2.2', sprintf(
				/* translators: 1: 'siteurl'/'home' argument, 2: bloginfo() function name, 3: 'url' argument */
				__( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s option instead.' ),
				'<code>' . $show . '</code>',
				'<code>bloginfo()</code>',
				'<code>url</code>'
			) );
		case 'url' :
			$output = home_url();
			break;
		case 'wpurl' :
			$output = site_url();
			break;
		case 'description':
			$output = get_option('blogdescription');
			break;
		case 'rdf_url':
			$output = get_feed_link('rdf');
			break;
		case 'rss_url':
			$output = get_feed_link('rss');
			break;
		case 'rss2_url':
			$output = get_feed_link('rss2');
			break;
		case 'atom_url':
			$output = get_feed_link('atom');
			break;
		case 'comments_atom_url':
			$output = get_feed_link('comments_atom');
			break;
		case 'comments_rss2_url':
			$output = get_feed_link('comments_rss2');
			break;
		case 'pingback_url':
			$output = site_url( 'xmlrpc.php' );
			break;
		case 'stylesheet_url':
			$output = get_stylesheet_uri();
			break;
		case 'stylesheet_directory':
			$output = get_stylesheet_directory_uri();
			break;
		case 'template_directory':
		case 'template_url':
			$output = get_template_directory_uri();
			break;
		case 'admin_email':
			$output = get_option('admin_email');
			break;
		case 'charset':
			$output = get_option('blog_charset');
			if ('' == $output) $output = 'UTF-8';
			break;
		case 'html_type' :
			$output = get_option('html_type');
			break;
		case 'version':
			global $wp_version;
			$output = $wp_version;
			break;
		case 'language':
			$output = get_locale();
			$output = str_replace('_', '-', $output);
			break;
		case 'text_direction':
			_deprecated_argument( __FUNCTION__, '2.2', sprintf(
				/* translators: 1: 'text_direction' argument, 2: bloginfo() function name, 3: is_rtl() function name */
				__( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s function instead.' ),
				'<code>' . $show . '</code>',
				'<code>bloginfo()</code>',
				'<code>is_rtl()</code>'
			) );
			if ( function_exists( 'is_rtl' ) ) {
				$output = is_rtl() ? 'rtl' : 'ltr';
			} else {
				$output = 'ltr';
			}
			break;
		case 'name':
		default:
			$output = get_option('blogname');
			break;
	}

	$url = true;
	if (strpos($show, 'url') === false &&
		strpos($show, 'directory') === false &&
		strpos($show, 'home') === false)
		$url = false;

	if ( 'display' == $filter ) {
		if ( $url ) {
			/**
			 * Filter the URL returned by get_bloginfo().
			 *
			 * @since 2.0.5
			 *
			 * @param mixed $output The URL returned by bloginfo().
			 * @param mixed $show   Type of information requested.
			 */
			$output = apply_filters( 'bloginfo_url', $output, $show );
		} else {
			/**
			 * Filter the site information returned by get_bloginfo().
			 *
			 * @since 0.71
			 *
			 * @param mixed $output The requested non-URL site information.
			 * @param mixed $show   Type of information requested.
			 */
			$output = apply_filters( 'bloginfo', $output, $show );
		}
	}

	return $output;
}

/**
 * Returns the Site Icon URL.
 *
 * @param  int    $size    Size of the site icon.
 * @param  string $url     Fallback url if no site icon is found.
 * @param  int    $blog_id Id of the blog to get the site icon for.
 * @return string          Site Icon URL.
 */
function get_site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
	if ( $blog_id && is_multisite() ) {
		$site_icon_id = get_blog_option( $blog_id, 'site_icon' );
	} else {
		$site_icon_id = get_option( 'site_icon' );
	}

	if ( $site_icon_id ) {
		if ( $size >= 512 ) {
			$size_data = 'full';
		} else {
			$size_data = array( $size, $size );
		}
		$url_data = wp_get_attachment_image_src( $site_icon_id, $size_data );
		if ( $url_data ) {
			$url = $url_data[0];
		}
	}

	return $url;
}

/**
 * Displays the Site Icon URL.
 *
 * @param  int    $size    Size of the site icon.
 * @param  string $url     Fallback url if no site icon is found.
 * @param  int    $blog_id Id of the blog to get the site icon for.
 */
function site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
	echo esc_url( get_site_icon_url( $size, $url, $blog_id ) );
}

/**
 * Whether the site has a Site Icon.
 *
 * @param int $blog_id Optional. Blog ID. Default: Current blog.
 * @return bool
 */
function has_site_icon( $blog_id = 0 ) {
	return (bool) get_site_icon_url( 512, '', $blog_id );
}

/**
 * Display title tag with contents.
 *
 * @ignore
 * @since 4.1.0
 * @access private
 *
 * @see wp_title()
 */
function _wp_render_title_tag() {
	if ( ! current_theme_supports( 'title-tag' ) ) {
		return;
	}

	// This can only work internally on wp_head.
	if ( ! did_action( 'wp_head' ) && ! doing_action( 'wp_head' ) ) {
		return;
	}

	echo '<title>' . wp_title( '|', false, 'right' ) . "</title>\n";
}

/**
 * Display or retrieve page title for all areas of blog.
 *
 * By default, the page title will display the separator before the page title,
 * so that the blog title will be before the page title. This is not good for
 * title display, since the blog title shows up on most tabs and not what is
 * important, which is the page that the user is looking at.
 *
 * There are also SEO benefits to having the blog title after or to the 'right'
 * or the page title. However, it is mostly common sense to have the blog title
 * to the right with most browsers supporting tabs. You can achieve this by
 * using the seplocation parameter and setting the value to 'right'. This change
 * was introduced around 2.5.0, in case backwards compatibility of themes is
 * important.
 *
 * @since 1.0.0
 *
 * @global WP_Locale $wp_locale
 * @global int       $page
 * @global int       $paged
 *
 * @param string $sep         Optional, default is '&raquo;'. How to separate the various items within the page title.
 * @param bool   $display     Optional, default is true. Whether to display or retrieve title.
 * @param string $seplocation Optional. Direction to display title, 'right'.
 * @return string|void String on retrieve.
 */
function wp_title( $sep = '&raquo;', $display = true, $seplocation = '' ) {
	global $wp_locale, $page, $paged;

	$m = get_query_var('m');
	$year = get_query_var('year');
	$monthnum = get_query_var('monthnum');
	$day = get_query_var('day');
	$search = get_query_var('s');
	$title = '';

	$t_sep = '%WP_TITILE_SEP%'; // Temporary separator, for accurate flipping, if necessary

	// If there is a post
	if ( is_single() || ( is_home() && !is_front_page() ) || ( is_page() && !is_front_page() ) ) {
		$title = single_post_title( '', false );
	}

	// If there's a post type archive
	if ( is_post_type_archive() ) {
		$post_type = get_query_var( 'post_type' );
		if ( is_array( $post_type ) )
			$post_type = reset( $post_type );
		$post_type_object = get_post_type_object( $post_type );
		if ( ! $post_type_object->has_archive )
			$title = post_type_archive_title( '', false );
	}

	// If there's a category or tag
	if ( is_category() || is_tag() ) {
		$title = single_term_title( '', false );
	}

	// If there's a taxonomy
	if ( is_tax() ) {
		$term = get_queried_object();
		if ( $term ) {
			$tax = get_taxonomy( $term->taxonomy );
			$title = single_term_title( $tax->labels->name . $t_sep, false );
		}
	}

	// If there's an author
	if ( is_author() && ! is_post_type_archive() ) {
		$author = get_queried_object();
		if ( $author )
			$title = $author->display_name;
	}

	// Post type archives with has_archive should override terms.
	if ( is_post_type_archive() && $post_type_object->has_archive )
		$title = post_type_archive_title( '', false );

	// If there's a month
	if ( is_archive() && !empty($m) ) {
		$my_year = substr($m, 0, 4);
		$my_month = $wp_locale->get_month(substr($m, 4, 2));
		$my_day = intval(substr($m, 6, 2));
		$title = $my_year . ( $my_month ? $t_sep . $my_month : '' ) . ( $my_day ? $t_sep . $my_day : '' );
	}

	// If there's a year
	if ( is_archive() && !empty($year) ) {
		$title = $year;
		if ( !empty($monthnum) )
			$title .= $t_sep . $wp_locale->get_month($monthnum);
		if ( !empty($day) )
			$title .= $t_sep . zeroise($day, 2);
	}

	// If it's a search
	if ( is_search() ) {
		/* translators: 1: separator, 2: search phrase */
		$title = sprintf(__('Search Results %1$s %2$s'), $t_sep, strip_tags($search));
	}

	// If it's a 404 page
	if ( is_404() ) {
		$title = __('Page not found');
	}

	$prefix = '';
	if ( !empty($title) )
		$prefix = " $sep ";

	/**
	 * Filter the parts of the page title.
	 *
	 * @since 4.0.0
	 *
	 * @param array $title_array Parts of the page title.
	 */
	$title_array = apply_filters( 'wp_title_parts', explode( $t_sep, $title ) );

 	// Determines position of the separator and direction of the breadcrumb
	if ( 'right' == $seplocation ) { // sep on right, so reverse the order
		$title_array = array_reverse( $title_array );
		$title = implode( " $sep ", $title_array ) . $prefix;
	} else {
		$title = $prefix . implode( " $sep ", $title_array );
	}

	if ( current_theme_supports( 'title-tag' ) && ! is_feed() ) {
		$title .= get_bloginfo( 'name', 'display' );

		$site_description = get_bloginfo( 'description', 'display' );
		if ( $site_description && ( is_home() || is_front_page() ) ) {
			$title .= " $sep $site_description";
		}

		if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) {
			$title .= " $sep " . sprintf( __( 'Page %s' ), max( $paged, $page ) );
		}
	}

	/**
	 * Filter the text of the page title.
	 *
	 * @since 2.0.0
	 *
	 * @param string $title       Page title.
	 * @param string $sep         Title separator.
	 * @param string $seplocation Location of the separator (left or right).
	 */
	$title = apply_filters( 'wp_title', $title, $sep, $seplocation );

	// Send it out
	if ( $display )
		echo $title;
	else
		return $title;

}

/**
 * Display or retrieve page title for post.
 *
 * This is optimized for single.php template file for displaying the post title.
 *
 * It does not support placing the separator after the title, but by leaving the
 * prefix parameter empty, you can set the title separator manually. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 0.71
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional, default is true. Whether to display or retrieve title.
 * @return string|void Title when retrieving.
 */
function single_post_title( $prefix = '', $display = true ) {
	$_post = get_queried_object();

	if ( !isset($_post->post_title) )
		return;

	/**
	 * Filter the page title for a single post.
	 *
	 * @since 0.71
	 *
	 * @param string $_post_title The single post page title.
	 * @param object $_post       The current queried object as returned by get_queried_object().
	 */
	$title = apply_filters( 'single_post_title', $_post->post_title, $_post );
	if ( $display )
		echo $prefix . $title;
	else
		return $prefix . $title;
}

/**
 * Display or retrieve title for a post type archive.
 *
 * This is optimized for archive.php and archive-{$post_type}.php template files
 * for displaying the title of the post type.
 *
 * @since 3.1.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional, default is true. Whether to display or retrieve title.
 * @return string|void Title when retrieving, null when displaying or failure.
 */
function post_type_archive_title( $prefix = '', $display = true ) {
	if ( ! is_post_type_archive() )
		return;

	$post_type = get_query_var( 'post_type' );
	if ( is_array( $post_type ) )
		$post_type = reset( $post_type );

	$post_type_obj = get_post_type_object( $post_type );

	/**
	 * Filter the post type archive title.
	 *
	 * @since 3.1.0
	 *
	 * @param string $post_type_name Post type 'name' label.
	 * @param string $post_type      Post type.
	 */
	$title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type );

	if ( $display )
		echo $prefix . $title;
	else
		return $prefix . $title;
}

/**
 * Display or retrieve page title for category archive.
 *
 * This is useful for category template file or files, because it is optimized
 * for category page title and with less overhead than {@link wp_title()}.
 *
 * It does not support placing the separator after the title, but by leaving the
 * prefix parameter empty, you can set the title separator manually. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 0.71
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional, default is true. Whether to display or retrieve title.
 * @return string|void Title when retrieving.
 */
function single_cat_title( $prefix = '', $display = true ) {
	return single_term_title( $prefix, $display );
}

/**
 * Display or retrieve page title for tag post archive.
 *
 * Useful for tag template files for displaying the tag page title. It has less
 * overhead than {@link wp_title()}, because of its limited implementation.
 *
 * It does not support placing the separator after the title, but by leaving the
 * prefix parameter empty, you can set the title separator manually. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 2.3.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional, default is true. Whether to display or retrieve title.
 * @return string|void Title when retrieving.
 */
function single_tag_title( $prefix = '', $display = true ) {
	return single_term_title( $prefix, $display );
}

/**
 * Display or retrieve page title for taxonomy term archive.
 *
 * Useful for taxonomy term template files for displaying the taxonomy term page title.
 * It has less overhead than {@link wp_title()}, because of its limited implementation.
 *
 * It does not support placing the separator after the title, but by leaving the
 * prefix parameter empty, you can set the title separator manually. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 3.1.0
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional, default is true. Whether to display or retrieve title.
 * @return string|void Title when retrieving.
 */
function single_term_title( $prefix = '', $display = true ) {
	$term = get_queried_object();

	if ( !$term )
		return;

	if ( is_category() ) {
		/**
		 * Filter the category archive page title.
		 *
		 * @since 2.0.10
		 *
		 * @param string $term_name Category name for archive being displayed.
		 */
		$term_name = apply_filters( 'single_cat_title', $term->name );
	} elseif ( is_tag() ) {
		/**
		 * Filter the tag archive page title.
		 *
		 * @since 2.3.0
		 *
		 * @param string $term_name Tag name for archive being displayed.
		 */
		$term_name = apply_filters( 'single_tag_title', $term->name );
	} elseif ( is_tax() ) {
		/**
		 * Filter the custom taxonomy archive page title.
		 *
		 * @since 3.1.0
		 *
		 * @param string $term_name Term name for archive being displayed.
		 */
		$term_name = apply_filters( 'single_term_title', $term->name );
	} else {
		return;
	}

	if ( empty( $term_name ) )
		return;

	if ( $display )
		echo $prefix . $term_name;
	else
		return $prefix . $term_name;
}

/**
 * Display or retrieve page title for post archive based on date.
 *
 * Useful for when the template only needs to display the month and year, if
 * either are available. Optimized for just this purpose, so if it is all that
 * is needed, should be better than {@link wp_title()}.
 *
 * It does not support placing the separator after the title, but by leaving the
 * prefix parameter empty, you can set the title separator manually. The prefix
 * does not automatically place a space between the prefix, so if there should
 * be a space, the parameter value will need to have it at the end.
 *
 * @since 0.71
 *
 * @global WP_Locale $wp_locale
 *
 * @param string $prefix  Optional. What to display before the title.
 * @param bool   $display Optional, default is true. Whether to display or retrieve title.
 * @return string|void Title when retrieving.
 */
function single_month_title($prefix = '', $display = true ) {
	global $wp_locale;

	$m = get_query_var('m');
	$year = get_query_var('year');
	$monthnum = get_query_var('monthnum');

	if ( !empty($monthnum) && !empty($year) ) {
		$my_year = $year;
		$my_month = $wp_locale->get_month($monthnum);
	} elseif ( !empty($m) ) {
		$my_year = substr($m, 0, 4);
		$my_month = $wp_locale->get_month(substr($m, 4, 2));
	}

	if ( empty($my_month) )
		return false;

	$result = $prefix . $my_month . $prefix . $my_year;

	if ( !$display )
		return $result;
	echo $result;
}

/**
 * Display the archive title based on the queried object.
 *
 * @since 4.1.0
 *
 * @see get_the_archive_title()
 *
 * @param string $before Optional. Content to prepend to the title. Default empty.
 * @param string $after  Optional. Content to append to the title. Default empty.
 */
function the_archive_title( $before = '', $after = '' ) {
	$title = get_the_archive_title();

	if ( ! empty( $title ) ) {
		echo $before . $title . $after;
	}
}

/**
 * Retrieve the archive title based on the queried object.
 *
 * @since 4.1.0
 *
 * @return string Archive title.
 */
function get_the_archive_title() {
	if ( is_category() ) {
		$title = sprintf( __( 'Category: %s' ), single_cat_title( '', false ) );
	} elseif ( is_tag() ) {
		$title = sprintf( __( 'Tag: %s' ), single_tag_title( '', false ) );
	} elseif ( is_author() ) {
		$title = sprintf( __( 'Author: %s' ), '<span class="vcard">' . get_the_author() . '</span>' );
	} elseif ( is_year() ) {
		$title = sprintf( __( 'Year: %s' ), get_the_date( _x( 'Y', 'yearly archives date format' ) ) );
	} elseif ( is_month() ) {
		$title = sprintf( __( 'Month: %s' ), get_the_date( _x( 'F Y', 'monthly archives date format' ) ) );
	} elseif ( is_day() ) {
		$title = sprintf( __( 'Day: %s' ), get_the_date( _x( 'F j, Y', 'daily archives date format' ) ) );
	} elseif ( is_tax( 'post_format' ) ) {
		if ( is_tax( 'post_format', 'post-format-aside' ) ) {
			$title = _x( 'Asides', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {
			$title = _x( 'Galleries', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-image' ) ) {
			$title = _x( 'Images', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-video' ) ) {
			$title = _x( 'Videos', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {
			$title = _x( 'Quotes', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-link' ) ) {
			$title = _x( 'Links', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-status' ) ) {
			$title = _x( 'Statuses', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {
			$title = _x( 'Audio', 'post format archive title' );
		} elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {
			$title = _x( 'Chats', 'post format archive title' );
		}
	} elseif ( is_post_type_archive() ) {
		$title = sprintf( __( 'Archives: %s' ), post_type_archive_title( '', false ) );
	} elseif ( is_tax() ) {
		$tax = get_taxonomy( get_queried_object()->taxonomy );
		/* translators: 1: Taxonomy singular name, 2: Current taxonomy term */
		$title = sprintf( __( '%1$s: %2$s' ), $tax->labels->singular_name, single_term_title( '', false ) );
	} else {
		$title = __( 'Archives' );
	}

	/**
	 * Filter the archive title.
	 *
	 * @since 4.1.0
	 *
	 * @param string $title Archive title to be displayed.
	 */
	return apply_filters( 'get_the_archive_title', $title );
}

/**
 * Display category, tag, or term description.
 *
 * @since 4.1.0
 *
 * @see get_the_archive_description()
 *
 * @param string $before Optional. Content to prepend to the description. Default empty.
 * @param string $after  Optional. Content to append to the description. Default empty.
 */
function the_archive_description( $before = '', $after = '' ) {
	$description = get_the_archive_description();
	if ( $description ) {
		echo $before . $description . $after;
	}
}

/**
 * Retrieve category, tag, or term description.
 *
 * @since 4.1.0
 *
 * @return string Archive description.
 */
function get_the_archive_description() {
	/**
	 * Filter the archive description.
	 *
	 * @since 4.1.0
	 *
	 * @see term_description()
	 *
	 * @param string $description Archive description to be displayed.
	 */
	return apply_filters( 'get_the_archive_description', term_description() );
}

/**
 * Retrieve archive link content based on predefined or custom code.
 *
 * The format can be one of four styles. The 'link' for head element, 'option'
 * for use in the select element, 'html' for use in list (either ol or ul HTML
 * elements). Custom content is also supported using the before and after
 * parameters.
 *
 * The 'link' format uses the `<link>` HTML element with the **archives**
 * relationship. The before and after parameters are not used. The text
 * parameter is used to describe the link.
 *
 * The 'option' format uses the option HTML element for use in select element.
 * The value is the url parameter and the before and after parameters are used
 * between the text description.
 *
 * The 'html' format, which is the default, uses the li HTML element for use in
 * the list HTML elements. The before parameter is before the link and the after
 * parameter is after the closing link.
 *
 * The custom format uses the before parameter before the link ('a' HTML
 * element) and the after parameter after the closing link tag. If the above
 * three values for the format are not used, then custom format is assumed.
 *
 * @since 1.0.0
 *
 * @todo Properly document optional arguments as such
 *
 * @param string $url    URL to archive.
 * @param string $text   Archive text description.
 * @param string $format Optional, default is 'html'. Can be 'link', 'option', 'html', or custom.
 * @param string $before Optional.
 * @param string $after  Optional.
 * @return string HTML link content for archive.
 */
function get_archives_link($url, $text, $format = 'html', $before = '', $after = '') {
	$text = wptexturize($text);
	$url = esc_url($url);

	if ('link' == $format)
		$link_html = "\t<link rel='archives' title='" . esc_attr( $text ) . "' href='$url' />\n";
	elseif ('option' == $format)
		$link_html = "\t<option value='$url'>$before $text $after</option>\n";
	elseif ('html' == $format)
		$link_html = "\t<li>$before<a href='$url'>$text</a>$after</li>\n";
	else // custom
		$link_html = "\t$before<a href='$url'>$text</a>$after\n";

	/**
	 * Filter the archive link content.
	 *
	 * @since 2.6.0
	 *
	 * @param string $link_html The archive HTML link content.
	 */
	return apply_filters( 'get_archives_link', $link_html );
}

/**
 * Display archive links based on type and format.
 *
 * @since 1.2.0
 *
 * @see get_archives_link()
 *
 * @global wpdb      $wpdb
 * @global WP_Locale $wp_locale
 *
 * @param string|array $args {
 *     Default archive links arguments. Optional.
 *
 *     @type string     $type            Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly',
 *                                       'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha'
 *                                       display the same archive link list as well as post titles instead
 *                                       of displaying dates. The difference between the two is that 'alpha'
 *                                       will order by post title and 'postbypost' will order by post date.
 *                                       Default 'monthly'.
 *     @type string|int $limit           Number of links to limit the query to. Default empty (no limit).
 *     @type string     $format          Format each link should take using the $before and $after args.
 *                                       Accepts 'link' (`<link>` tag), 'option' (`<option>` tag), 'html'
 *                                       (`<li>` tag), or a custom format, which generates a link anchor
 *                                       with $before preceding and $after succeeding. Default 'html'.
 *     @type string     $before          Markup to prepend to the beginning of each link. Default empty.
 *     @type string     $after           Markup to append to the end of each link. Default empty.
 *     @type bool       $show_post_count Whether to display the post count alongside the link. Default false.
 *     @type bool|int   $echo            Whether to echo or return the links list. Default 1|true to echo.
 *     @type string     $order           Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'.
 *                                       Default 'DESC'.
 * }
 * @return string|void String when retrieving.
 */
function wp_get_archives( $args = '' ) {
	global $wpdb, $wp_locale;

	$defaults = array(
		'type' => 'monthly', 'limit' => '',
		'format' => 'html', 'before' => '',
		'after' => '', 'show_post_count' => false,
		'echo' => 1, 'order' => 'DESC',
	);

	$r = wp_parse_args( $args, $defaults );

	if ( '' == $r['type'] ) {
		$r['type'] = 'monthly';
	}

	if ( ! empty( $r['limit'] ) ) {
		$r['limit'] = absint( $r['limit'] );
		$r['limit'] = ' LIMIT ' . $r['limit'];
	}

	$order = strtoupper( $r['order'] );
	if ( $order !== 'ASC' ) {
		$order = 'DESC';
	}

	// this is what will separate dates on weekly archive links
	$archive_week_separator = '&#8211;';

	// over-ride general date format ? 0 = no: use the date format set in Options, 1 = yes: over-ride
	$archive_date_format_over_ride = 0;

	// options for daily archive (only if you over-ride the general date format)
	$archive_day_date_format = 'Y/m/d';

	// options for weekly archive (only if you over-ride the general date format)
	$archive_week_start_date_format = 'Y/m/d';
	$archive_week_end_date_format	= 'Y/m/d';

	if ( ! $archive_date_format_over_ride ) {
		$archive_day_date_format = get_option( 'date_format' );
		$archive_week_start_date_format = get_option( 'date_format' );
		$archive_week_end_date_format = get_option( 'date_format' );
	}

	/**
	 * Filter the SQL WHERE clause for retrieving archives.
	 *
	 * @since 2.2.0
	 *
	 * @param string $sql_where Portion of SQL query containing the WHERE clause.
	 * @param array  $r         An array of default arguments.
	 */
	$where = apply_filters( 'getarchives_where', "WHERE post_type = 'post' AND post_status = 'publish'", $r );

	/**
	 * Filter the SQL JOIN clause for retrieving archives.
	 *
	 * @since 2.2.0
	 *
	 * @param string $sql_join Portion of SQL query containing JOIN clause.
	 * @param array  $r        An array of default arguments.
	 */
	$join = apply_filters( 'getarchives_join', '', $r );

	$output = '';

	$last_changed = wp_cache_get( 'last_changed', 'posts' );
	if ( ! $last_changed ) {
		$last_changed = microtime();
		wp_cache_set( 'last_changed', $last_changed, 'posts' );
	}

	$limit = $r['limit'];

	if ( 'monthly' == $r['type'] ) {
		$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order $limit";
		$key = md5( $query );
		$key = "wp_get_archives:$key:$last_changed";
		if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
			$results = $wpdb->get_results( $query );
			wp_cache_set( $key, $results, 'posts' );
		}
		if ( $results ) {
			$after = $r['after'];
			foreach ( (array) $results as $result ) {
				$url = get_month_link( $result->year, $result->month );
				/* translators: 1: month name, 2: 4-digit year */
				$text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
				if ( $r['show_post_count'] ) {
					$r['after'] = '&nbsp;(' . $result->posts . ')' . $after;
				}
				$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
			}
		}
	} elseif ( 'yearly' == $r['type'] ) {
		$query = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date) ORDER BY post_date $order $limit";
		$key = md5( $query );
		$key = "wp_get_archives:$key:$last_changed";
		if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
			$results = $wpdb->get_results( $query );
			wp_cache_set( $key, $results, 'posts' );
		}
		if ( $results ) {
			$after = $r['after'];
			foreach ( (array) $results as $result) {
				$url = get_year_link( $result->year );
				$text = sprintf( '%d', $result->year );
				if ( $r['show_post_count'] ) {
					$r['after'] = '&nbsp;(' . $result->posts . ')' . $after;
				}
				$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
			}
		}
	} elseif ( 'daily' == $r['type'] ) {
		$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date $order $limit";
		$key = md5( $query );
		$key = "wp_get_archives:$key:$last_changed";
		if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
			$results = $wpdb->get_results( $query );
			wp_cache_set( $key, $results, 'posts' );
		}
		if ( $results ) {
			$after = $r['after'];
			foreach ( (array) $results as $result ) {
				$url  = get_day_link( $result->year, $result->month, $result->dayofmonth );
				$date = sprintf( '%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth );
				$text = mysql2date( $archive_day_date_format, $date );
				if ( $r['show_post_count'] ) {
					$r['after'] = '&nbsp;(' . $result->posts . ')' . $after;
				}
				$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
			}
		}
	} elseif ( 'weekly' == $r['type'] ) {
		$week = _wp_mysql_week( '`post_date`' );
		$query = "SELECT DISTINCT $week AS `week`, YEAR( `post_date` ) AS `yr`, DATE_FORMAT( `post_date`, '%Y-%m-%d' ) AS `yyyymmdd`, count( `ID` ) AS `posts` FROM `$wpdb->posts` $join $where GROUP BY $week, YEAR( `post_date` ) ORDER BY `post_date` $order $limit";
		$key = md5( $query );
		$key = "wp_get_archives:$key:$last_changed";
		if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
			$results = $wpdb->get_results( $query );
			wp_cache_set( $key, $results, 'posts' );
		}
		$arc_w_last = '';
		if ( $results ) {
			$after = $r['after'];
			foreach ( (array) $results as $result ) {
				if ( $result->week != $arc_w_last ) {
					$arc_year       = $result->yr;
					$arc_w_last     = $result->week;
					$arc_week       = get_weekstartend( $result->yyyymmdd, get_option( 'start_of_week' ) );
				…

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