/wp-includes/link-template.php
PHP | 2419 lines | 1784 code | 180 blank | 455 comment | 179 complexity | 3b3eb684cc8459407925c4cd68bfba32 MD5 | raw file
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- <?php
- /**
- * WordPress Link Template Functions
- *
- * @package WordPress
- * @subpackage Template
- */
- /**
- * Display the permalink for the current post.
- *
- * @since 1.2.0
- * @uses apply_filters() Calls 'the_permalink' filter on the permalink string.
- */
- function the_permalink() {
- echo apply_filters('the_permalink', get_permalink());
- }
- /**
- * Retrieve trailing slash string, if blog set for adding trailing slashes.
- *
- * Conditionally adds a trailing slash if the permalink structure has a trailing
- * slash, strips the trailing slash if not. The string is passed through the
- * 'user_trailingslashit' filter. Will remove trailing slash from string, if
- * blog is not set to have them.
- *
- * @since 2.2.0
- * @uses $wp_rewrite
- *
- * @param string $string URL with or without a trailing slash.
- * @param string $type_of_url The type of URL being considered (e.g. single, category, etc) for use in the filter.
- * @return string
- */
- function user_trailingslashit($string, $type_of_url = '') {
- global $wp_rewrite;
- if ( $wp_rewrite->use_trailing_slashes )
- $string = trailingslashit($string);
- else
- $string = untrailingslashit($string);
- // Note that $type_of_url can be one of following:
- // single, single_trackback, single_feed, single_paged, feed, category, page, year, month, day, paged, post_type_archive
- $string = apply_filters('user_trailingslashit', $string, $type_of_url);
- return $string;
- }
- /**
- * Display permalink anchor for current post.
- *
- * The permalink mode title will use the post title for the 'a' element 'id'
- * attribute. The id mode uses 'post-' with the post ID for the 'id' attribute.
- *
- * @since 0.71
- *
- * @param string $mode Permalink mode can be either 'title', 'id', or default, which is 'id'.
- */
- function permalink_anchor($mode = 'id') {
- global $post;
- switch ( strtolower($mode) ) {
- case 'title':
- $title = sanitize_title($post->post_title) . '-' . $post->ID;
- echo '<a id="'.$title.'"></a>';
- break;
- case 'id':
- default:
- echo '<a id="post-' . $post->ID . '"></a>';
- break;
- }
- }
- /**
- * Retrieve full permalink for current post or post ID.
- *
- * @since 1.0.0
- *
- * @param int $id Optional. Post ID.
- * @param bool $leavename Optional, defaults to false. Whether to keep post name or page name.
- * @return string
- */
- function get_permalink($id = 0, $leavename = false) {
- $rewritecode = array(
- '%year%',
- '%monthnum%',
- '%day%',
- '%hour%',
- '%minute%',
- '%second%',
- $leavename? '' : '%postname%',
- '%post_id%',
- '%category%',
- '%author%',
- $leavename? '' : '%pagename%',
- );
- if ( is_object($id) && isset($id->filter) && 'sample' == $id->filter ) {
- $post = $id;
- $sample = true;
- } else {
- $post = &get_post($id);
- $sample = false;
- }
- if ( empty($post->ID) )
- return false;
- if ( $post->post_type == 'page' )
- return get_page_link($post->ID, $leavename, $sample);
- elseif ( $post->post_type == 'attachment' )
- return get_attachment_link($post->ID);
- elseif ( in_array($post->post_type, get_post_types( array('_builtin' => false) ) ) )
- return get_post_permalink($post->ID, $leavename, $sample);
- $permalink = get_option('permalink_structure');
- $permalink = apply_filters('pre_post_link', $permalink, $post, $leavename);
- if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending', 'auto-draft')) ) {
- $unixtime = strtotime($post->post_date);
- $category = '';
- if ( strpos($permalink, '%category%') !== false ) {
- $cats = get_the_category($post->ID);
- if ( $cats ) {
- usort($cats, '_usort_terms_by_ID'); // order by ID
- $category = $cats[0]->slug;
- if ( $parent = $cats[0]->parent )
- $category = get_category_parents($parent, false, '/', true) . $category;
- }
- // show default category in permalinks, without
- // having to assign it explicitly
- if ( empty($category) ) {
- $default_category = get_category( get_option( 'default_category' ) );
- $category = is_wp_error( $default_category ) ? '' : $default_category->slug;
- }
- }
- $author = '';
- if ( strpos($permalink, '%author%') !== false ) {
- $authordata = get_userdata($post->post_author);
- $author = $authordata->user_nicename;
- }
- $date = explode(" ",date('Y m d H i s', $unixtime));
- $rewritereplace =
- array(
- $date[0],
- $date[1],
- $date[2],
- $date[3],
- $date[4],
- $date[5],
- $post->post_name,
- $post->ID,
- $category,
- $author,
- $post->post_name,
- );
- $permalink = home_url( str_replace($rewritecode, $rewritereplace, $permalink) );
- $permalink = user_trailingslashit($permalink, 'single');
- } else { // if they're not using the fancy permalink option
- $permalink = home_url('?p=' . $post->ID);
- }
- return apply_filters('post_link', $permalink, $post, $leavename);
- }
- /**
- * Retrieve the permalink for a post with a custom post type.
- *
- * @since 3.0.0
- *
- * @param int $id Optional. Post ID.
- * @param bool $leavename Optional, defaults to false. Whether to keep post name.
- * @param bool $sample Optional, defaults to false. Is it a sample permalink.
- * @return string
- */
- function get_post_permalink( $id = 0, $leavename = false, $sample = false ) {
- global $wp_rewrite;
- $post = &get_post($id);
- if ( is_wp_error( $post ) )
- return $post;
- $post_link = $wp_rewrite->get_extra_permastruct($post->post_type);
- $slug = $post->post_name;
- $draft_or_pending = isset($post->post_status) && in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
- $post_type = get_post_type_object($post->post_type);
- if ( !empty($post_link) && ( !$draft_or_pending || $sample ) ) {
- if ( ! $leavename ) {
- if ( $post_type->hierarchical )
- $slug = get_page_uri($id);
- $post_link = str_replace("%$post->post_type%", $slug, $post_link);
- }
- $post_link = home_url( user_trailingslashit($post_link) );
- } else {
- if ( $post_type->query_var && ( isset($post->post_status) && !$draft_or_pending ) )
- $post_link = add_query_arg($post_type->query_var, $slug, '');
- else
- $post_link = add_query_arg(array('post_type' => $post->post_type, 'p' => $post->ID), '');
- $post_link = home_url($post_link);
- }
- return apply_filters('post_type_link', $post_link, $post, $leavename, $sample);
- }
- /**
- * Retrieve permalink from post ID.
- *
- * @since 1.0.0
- *
- * @param int $post_id Optional. Post ID.
- * @param mixed $deprecated Not used.
- * @return string
- */
- function post_permalink( $post_id = 0, $deprecated = '' ) {
- if ( !empty( $deprecated ) )
- _deprecated_argument( __FUNCTION__, '1.3' );
- return get_permalink($post_id);
- }
- /**
- * Retrieve the permalink for current page or page ID.
- *
- * Respects page_on_front. Use this one.
- *
- * @since 1.5.0
- *
- * @param int $id Optional. Post ID.
- * @param bool $leavename Optional, defaults to false. Whether to keep page name.
- * @param bool $sample Optional, defaults to false. Is it a sample permalink.
- * @return string
- */
- function get_page_link( $id = false, $leavename = false, $sample = false ) {
- global $post;
- $id = (int) $id;
- if ( !$id )
- $id = (int) $post->ID;
- if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') )
- $link = home_url('/');
- else
- $link = _get_page_link( $id , $leavename, $sample );
- return apply_filters('page_link', $link, $id, $sample);
- }
- /**
- * Retrieve the page permalink.
- *
- * Ignores page_on_front. Internal use only.
- *
- * @since 2.1.0
- * @access private
- *
- * @param int $id Optional. Post ID.
- * @param bool $leavename Optional. Leave name.
- * @param bool $sample Optional. Sample permalink.
- * @return string
- */
- function _get_page_link( $id = false, $leavename = false, $sample = false ) {
- global $post, $wp_rewrite;
- if ( !$id )
- $id = (int) $post->ID;
- else
- $post = &get_post($id);
- $draft_or_pending = in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
- $link = $wp_rewrite->get_page_permastruct();
- if ( !empty($link) && ( ( isset($post->post_status) && !$draft_or_pending ) || $sample ) ) {
- if ( ! $leavename ) {
- $link = str_replace('%pagename%', get_page_uri($id), $link);
- }
- $link = home_url($link);
- $link = user_trailingslashit($link, 'page');
- } else {
- $link = home_url("?page_id=$id");
- }
- return apply_filters( '_get_page_link', $link, $id );
- }
- /**
- * Retrieve permalink for attachment.
- *
- * This can be used in the WordPress Loop or outside of it.
- *
- * @since 2.0.0
- *
- * @param int $id Optional. Post ID.
- * @return string
- */
- function get_attachment_link($id = false) {
- global $post, $wp_rewrite;
- $link = false;
- if ( ! $id)
- $id = (int) $post->ID;
- $object = get_post($id);
- if ( $wp_rewrite->using_permalinks() && ($object->post_parent > 0) && ($object->post_parent != $id) ) {
- $parent = get_post($object->post_parent);
- if ( 'page' == $parent->post_type )
- $parentlink = _get_page_link( $object->post_parent ); // Ignores page_on_front
- else
- $parentlink = get_permalink( $object->post_parent );
- if ( is_numeric($object->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') )
- $name = 'attachment/' . $object->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker
- else
- $name = $object->post_name;
- if ( strpos($parentlink, '?') === false )
- $link = user_trailingslashit( trailingslashit($parentlink) . $name );
- }
- if ( ! $link )
- $link = home_url( "/?attachment_id=$id" );
- return apply_filters('attachment_link', $link, $id);
- }
- /**
- * Retrieve the permalink for the year archives.
- *
- * @since 1.5.0
- *
- * @param int|bool $year False for current year or year for permalink.
- * @return string
- */
- function get_year_link($year) {
- global $wp_rewrite;
- if ( !$year )
- $year = gmdate('Y', current_time('timestamp'));
- $yearlink = $wp_rewrite->get_year_permastruct();
- if ( !empty($yearlink) ) {
- $yearlink = str_replace('%year%', $year, $yearlink);
- return apply_filters('year_link', home_url( user_trailingslashit($yearlink, 'year') ), $year);
- } else {
- return apply_filters('year_link', home_url('?m=' . $year), $year);
- }
- }
- /**
- * Retrieve the permalink for the month archives with year.
- *
- * @since 1.0.0
- *
- * @param bool|int $year False for current year. Integer of year.
- * @param bool|int $month False for current month. Integer of month.
- * @return string
- */
- function get_month_link($year, $month) {
- global $wp_rewrite;
- if ( !$year )
- $year = gmdate('Y', current_time('timestamp'));
- if ( !$month )
- $month = gmdate('m', current_time('timestamp'));
- $monthlink = $wp_rewrite->get_month_permastruct();
- if ( !empty($monthlink) ) {
- $monthlink = str_replace('%year%', $year, $monthlink);
- $monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
- return apply_filters('month_link', home_url( user_trailingslashit($monthlink, 'month') ), $year, $month);
- } else {
- return apply_filters('month_link', home_url( '?m=' . $year . zeroise($month, 2) ), $year, $month);
- }
- }
- /**
- * Retrieve the permalink for the day archives with year and month.
- *
- * @since 1.0.0
- *
- * @param bool|int $year False for current year. Integer of year.
- * @param bool|int $month False for current month. Integer of month.
- * @param bool|int $day False for current day. Integer of day.
- * @return string
- */
- function get_day_link($year, $month, $day) {
- global $wp_rewrite;
- if ( !$year )
- $year = gmdate('Y', current_time('timestamp'));
- if ( !$month )
- $month = gmdate('m', current_time('timestamp'));
- if ( !$day )
- $day = gmdate('j', current_time('timestamp'));
- $daylink = $wp_rewrite->get_day_permastruct();
- if ( !empty($daylink) ) {
- $daylink = str_replace('%year%', $year, $daylink);
- $daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink);
- $daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
- return apply_filters('day_link', home_url( user_trailingslashit($daylink, 'day') ), $year, $month, $day);
- } else {
- return apply_filters('day_link', home_url( '?m=' . $year . zeroise($month, 2) . zeroise($day, 2) ), $year, $month, $day);
- }
- }
- /**
- * Display the permalink for the feed type.
- *
- * @since 3.0.0
- *
- * @param string $anchor The link's anchor text.
- * @param string $feed Optional, defaults to default feed. Feed type.
- */
- function the_feed_link( $anchor, $feed = '' ) {
- $link = '<a href="' . esc_url( get_feed_link( $feed ) ) . '">' . $anchor . '</a>';
- echo apply_filters( 'the_feed_link', $link, $feed );
- }
- /**
- * Retrieve the permalink for the feed type.
- *
- * @since 1.5.0
- *
- * @param string $feed Optional, defaults to default feed. Feed type.
- * @return string
- */
- function get_feed_link($feed = '') {
- global $wp_rewrite;
- $permalink = $wp_rewrite->get_feed_permastruct();
- if ( '' != $permalink ) {
- if ( false !== strpos($feed, 'comments_') ) {
- $feed = str_replace('comments_', '', $feed);
- $permalink = $wp_rewrite->get_comment_feed_permastruct();
- }
- if ( get_default_feed() == $feed )
- $feed = '';
- $permalink = str_replace('%feed%', $feed, $permalink);
- $permalink = preg_replace('#/+#', '/', "/$permalink");
- $output = home_url( user_trailingslashit($permalink, 'feed') );
- } else {
- if ( empty($feed) )
- $feed = get_default_feed();
- if ( false !== strpos($feed, 'comments_') )
- $feed = str_replace('comments_', 'comments-', $feed);
- $output = home_url("?feed={$feed}");
- }
- return apply_filters('feed_link', $output, $feed);
- }
- /**
- * Retrieve the permalink for the post comments feed.
- *
- * @since 2.2.0
- *
- * @param int $post_id Optional. Post ID.
- * @param string $feed Optional. Feed type.
- * @return string
- */
- function get_post_comments_feed_link($post_id = 0, $feed = '') {
- $post_id = absint( $post_id );
- if ( ! $post_id )
- $post_id = get_the_ID();
- if ( empty( $feed ) )
- $feed = get_default_feed();
- if ( '' != get_option('permalink_structure') ) {
- if ( 'page' == get_option('show_on_front') && $post_id == get_option('page_on_front') )
- $url = _get_page_link( $post_id );
- else
- $url = get_permalink($post_id);
- $url = trailingslashit($url) . 'feed';
- if ( $feed != get_default_feed() )
- $url .= "/$feed";
- $url = user_trailingslashit($url, 'single_feed');
- } else {
- $type = get_post_field('post_type', $post_id);
- if ( 'page' == $type )
- $url = home_url("?feed=$feed&page_id=$post_id");
- else
- $url = home_url("?feed=$feed&p=$post_id");
- }
- return apply_filters('post_comments_feed_link', $url);
- }
- /**
- * Display the comment feed link for a post.
- *
- * Prints out the comment feed link for a post. Link text is placed in the
- * anchor. If no link text is specified, default text is used. If no post ID is
- * specified, the current post is used.
- *
- * @package WordPress
- * @subpackage Feed
- * @since 2.5.0
- *
- * @param string $link_text Descriptive text.
- * @param int $post_id Optional post ID. Default to current post.
- * @param string $feed Optional. Feed format.
- * @return string Link to the comment feed for the current post.
- */
- function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) {
- $url = get_post_comments_feed_link($post_id, $feed);
- if ( empty($link_text) )
- $link_text = __('Comments Feed');
- echo apply_filters( 'post_comments_feed_link_html', "<a href='$url'>$link_text</a>", $post_id, $feed );
- }
- /**
- * Retrieve the feed link for a given author.
- *
- * Returns a link to the feed for all posts by a given author. A specific feed
- * can be requested or left blank to get the default feed.
- *
- * @package WordPress
- * @subpackage Feed
- * @since 2.5.0
- *
- * @param int $author_id ID of an author.
- * @param string $feed Optional. Feed type.
- * @return string Link to the feed for the author specified by $author_id.
- */
- function get_author_feed_link( $author_id, $feed = '' ) {
- $author_id = (int) $author_id;
- $permalink_structure = get_option('permalink_structure');
- if ( empty($feed) )
- $feed = get_default_feed();
- if ( '' == $permalink_structure ) {
- $link = home_url("?feed=$feed&author=" . $author_id);
- } else {
- $link = get_author_posts_url($author_id);
- if ( $feed == get_default_feed() )
- $feed_link = 'feed';
- else
- $feed_link = "feed/$feed";
- $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
- }
- $link = apply_filters('author_feed_link', $link, $feed);
- return $link;
- }
- /**
- * Retrieve the feed link for a category.
- *
- * Returns a link to the feed for all posts in a given category. A specific feed
- * can be requested or left blank to get the default feed.
- *
- * @package WordPress
- * @subpackage Feed
- * @since 2.5.0
- *
- * @param int $cat_id ID of a category.
- * @param string $feed Optional. Feed type.
- * @return string Link to the feed for the category specified by $cat_id.
- */
- function get_category_feed_link($cat_id, $feed = '') {
- return get_term_feed_link($cat_id, 'category', $feed);
- }
- /**
- * Retrieve the feed link for a term.
- *
- * Returns a link to the feed for all posts in a given term. A specific feed
- * can be requested or left blank to get the default feed.
- *
- * @since 3.0
- *
- * @param int $term_id ID of a category.
- * @param string $taxonomy Optional. Taxonomy of $term_id
- * @param string $feed Optional. Feed type.
- * @return string Link to the feed for the term specified by $term_id and $taxonomy.
- */
- function get_term_feed_link( $term_id, $taxonomy = 'category', $feed = '' ) {
- $term_id = ( int ) $term_id;
- $term = get_term( $term_id, $taxonomy );
- if ( empty( $term ) || is_wp_error( $term ) )
- return false;
- if ( empty( $feed ) )
- $feed = get_default_feed();
- $permalink_structure = get_option( 'permalink_structure' );
- if ( '' == $permalink_structure ) {
- if ( 'category' == $taxonomy ) {
- $link = home_url("?feed=$feed&cat=$term_id");
- }
- elseif ( 'post_tag' == $taxonomy ) {
- $link = home_url("?feed=$feed&tag=$term->slug");
- } else {
- $t = get_taxonomy( $taxonomy );
- $link = home_url("?feed=$feed&$t->query_var=$term->slug");
- }
- } else {
- $link = get_term_link( $term_id, $term->taxonomy );
- if ( $feed == get_default_feed() )
- $feed_link = 'feed';
- else
- $feed_link = "feed/$feed";
- $link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' );
- }
- if ( 'category' == $taxonomy )
- $link = apply_filters( 'category_feed_link', $link, $feed );
- elseif ( 'post_tag' == $taxonomy )
- $link = apply_filters( 'category_feed_link', $link, $feed );
- else
- $link = apply_filters( 'taxonomy_feed_link', $link, $feed, $taxonomy );
- return $link;
- }
- /**
- * Retrieve permalink for feed of tag.
- *
- * @since 2.3.0
- *
- * @param int $tag_id Tag ID.
- * @param string $feed Optional. Feed type.
- * @return string
- */
- function get_tag_feed_link($tag_id, $feed = '') {
- return get_term_feed_link($tag_id, 'post_tag', $feed);
- }
- /**
- * Retrieve edit tag link.
- *
- * @since 2.7.0
- *
- * @param int $tag_id Tag ID
- * @param string $taxonomy Taxonomy
- * @return string
- */
- function get_edit_tag_link( $tag_id, $taxonomy = 'post_tag' ) {
- return apply_filters( 'get_edit_tag_link', get_edit_term_link( $tag_id, $taxonomy ) );
- }
- /**
- * Display or retrieve edit tag link with formatting.
- *
- * @since 2.7.0
- *
- * @param string $link Optional. Anchor text.
- * @param string $before Optional. Display before edit link.
- * @param string $after Optional. Display after edit link.
- * @param int|object $tag Tag object or ID
- * @return string HTML content.
- */
- function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
- $link = edit_term_link( $link, '', '', false, $tag );
- echo $before . apply_filters( 'edit_tag_link', $link ) . $after;
- }
- /**
- * Retrieve edit term url.
- *
- * @since 3.1.0
- *
- * @param int $term_id Term ID
- * @param string $taxonomy Taxonomy
- * @param string $object_type The object type
- * @return string
- */
- function get_edit_term_link( $term_id, $taxonomy, $object_type = '' ) {
- $tax = get_taxonomy( $taxonomy );
- if ( !current_user_can( $tax->cap->edit_terms ) )
- return;
- $term = get_term( $term_id, $taxonomy );
- $args = array(
- 'action' => 'edit',
- 'taxonomy' => $taxonomy,
- 'tag_ID' => $term->term_id,
- );
- if ( $object_type )
- $args['post_type'] = $object_type;
- $location = add_query_arg( $args, admin_url( 'edit-tags.php' ) );
- return apply_filters( 'get_edit_term_link', $location, $term_id, $taxonomy, $object_type );
- }
- /**
- * Display or retrieve edit term link with formatting.
- *
- * @since 3.1.0
- *
- * @param string $link Optional. Anchor text.
- * @param string $before Optional. Display before edit link.
- * @param string $after Optional. Display after edit link.
- * @param object $term Term object
- * @return string HTML content.
- */
- function edit_term_link( $link = '', $before = '', $after = '', $term = null, $echo = true ) {
- if ( is_null( $term ) ) {
- $term = get_queried_object();
- }
- $tax = get_taxonomy( $term->taxonomy );
- if ( !current_user_can($tax->cap->edit_terms) )
- return;
- if ( empty( $link ) )
- $link = __('Edit This');
- $link = '<a href="' . get_edit_term_link( $term->term_id, $term->taxonomy ) . '" title="' . $link . '">' . $link . '</a>';
- $link = $before . apply_filters( 'edit_term_link', $link, $term->term_id ) . $after;
- if ( $echo )
- echo $link;
- else
- return $link;
- }
- /**
- * Retrieve permalink for search.
- *
- * @since 3.0.0
- * @param string $query Optional. The query string to use. If empty the current query is used.
- * @return string
- */
- function get_search_link( $query = '' ) {
- global $wp_rewrite;
- if ( empty($query) )
- $search = get_search_query( false );
- else
- $search = stripslashes($query);
- $permastruct = $wp_rewrite->get_search_permastruct();
- if ( empty( $permastruct ) ) {
- $link = home_url('?s=' . urlencode($search) );
- } else {
- $search = urlencode($search);
- $search = str_replace('%2F', '/', $search); // %2F(/) is not valid within a URL, send it unencoded.
- $link = str_replace( '%search%', $search, $permastruct );
- $link = home_url( user_trailingslashit( $link, 'search' ) );
- }
- return apply_filters( 'search_link', $link, $search );
- }
- /**
- * Retrieve the permalink for the feed of the search results.
- *
- * @since 2.5.0
- *
- * @param string $search_query Optional. Search query.
- * @param string $feed Optional. Feed type.
- * @return string
- */
- function get_search_feed_link($search_query = '', $feed = '') {
- global $wp_rewrite;
- $link = get_search_link($search_query);
- if ( empty($feed) )
- $feed = get_default_feed();
- $permastruct = $wp_rewrite->get_search_permastruct();
- if ( empty($permastruct) ) {
- $link = add_query_arg('feed', $feed, $link);
- } else {
- $link = trailingslashit($link);
- $link .= "feed/$feed/";
- }
- $link = apply_filters('search_feed_link', $link, $feed, 'posts');
- return $link;
- }
- /**
- * Retrieve the permalink for the comments feed of the search results.
- *
- * @since 2.5.0
- *
- * @param string $search_query Optional. Search query.
- * @param string $feed Optional. Feed type.
- * @return string
- */
- function get_search_comments_feed_link($search_query = '', $feed = '') {
- global $wp_rewrite;
- if ( empty($feed) )
- $feed = get_default_feed();
- $link = get_search_feed_link($search_query, $feed);
- $permastruct = $wp_rewrite->get_search_permastruct();
- if ( empty($permastruct) )
- $link = add_query_arg('feed', 'comments-' . $feed, $link);
- else
- $link = add_query_arg('withcomments', 1, $link);
- $link = apply_filters('search_feed_link', $link, $feed, 'comments');
- return $link;
- }
- /**
- * Retrieve the permalink for a post type archive.
- *
- * @since 3.1.0
- *
- * @param string $post_type Post type
- * @return string
- */
- function get_post_type_archive_link( $post_type ) {
- global $wp_rewrite;
- if ( ! $post_type_obj = get_post_type_object( $post_type ) )
- return false;
- if ( ! $post_type_obj->has_archive )
- return false;
- if ( get_option( 'permalink_structure' ) && is_array( $post_type_obj->rewrite ) ) {
- $struct = ( true === $post_type_obj->has_archive ) ? $post_type_obj->rewrite['slug'] : $post_type_obj->has_archive;
- if ( $post_type_obj->rewrite['with_front'] )
- $struct = $wp_rewrite->front . $struct;
- else
- $struct = $wp_rewrite->root . $struct;
- $link = home_url( user_trailingslashit( $struct, 'post_type_archive' ) );
- } else {
- $link = home_url( '?post_type=' . $post_type );
- }
- return apply_filters( 'post_type_archive_link', $link, $post_type );
- }
- /**
- * Retrieve the permalink for a post type archive feed.
- *
- * @since 3.1.0
- *
- * @param string $post_type Post type
- * @param string $feed Optional. Feed type
- * @return string
- */
- function get_post_type_archive_feed_link( $post_type, $feed = '' ) {
- $default_feed = get_default_feed();
- if ( empty( $feed ) )
- $feed = $default_feed;
- if ( ! $link = get_post_type_archive_link( $post_type ) )
- return false;
- $post_type_obj = get_post_type_object( $post_type );
- if ( $post_type_obj->rewrite['feeds'] && get_option( 'permalink_structure' ) ) {
- $link = trailingslashit($link);
- $link .= 'feed/';
- if ( $feed != $default_feed )
- $link .= "$feed/";
- } else {
- $link = add_query_arg( 'feed', $feed, $link );
- }
- return apply_filters( 'post_type_archive_feed_link', $link, $feed );
- }
- /**
- * Retrieve edit posts link for post.
- *
- * Can be used within the WordPress loop or outside of it. Can be used with
- * pages, posts, attachments, and revisions.
- *
- * @since 2.3.0
- *
- * @param int $id Optional. Post ID.
- * @param string $context Optional, defaults to display. How to write the '&', defaults to '&'.
- * @return string
- */
- function get_edit_post_link( $id = 0, $context = 'display' ) {
- if ( !$post = &get_post( $id ) )
- return;
- if ( 'display' == $context )
- $action = '&action=edit';
- else
- $action = '&action=edit';
- $post_type_object = get_post_type_object( $post->post_type );
- if ( !$post_type_object )
- return;
- if ( !current_user_can( $post_type_object->cap->edit_post, $post->ID ) )
- return;
- return apply_filters( 'get_edit_post_link', admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), $post->ID, $context );
- }
- /**
- * Display edit post link for post.
- *
- * @since 1.0.0
- *
- * @param string $link Optional. Anchor text.
- * @param string $before Optional. Display before edit link.
- * @param string $after Optional. Display after edit link.
- * @param int $id Optional. Post ID.
- */
- function edit_post_link( $link = null, $before = '', $after = '', $id = 0 ) {
- if ( !$post = &get_post( $id ) )
- return;
- if ( !$url = get_edit_post_link( $post->ID ) )
- return;
- if ( null === $link )
- $link = __('Edit This');
- $post_type_obj = get_post_type_object( $post->post_type );
- $link = '<a class="post-edit-link" href="' . $url . '" title="' . esc_attr( $post_type_obj->labels->edit_item ) . '">' . $link . '</a>';
- echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after;
- }
- /**
- * Retrieve delete posts link for post.
- *
- * Can be used within the WordPress loop or outside of it, with any post type.
- *
- * @since 2.9.0
- *
- * @param int $id Optional. Post ID.
- * @param string $deprecated Not used.
- * @param bool $force_delete Whether to bypass trash and force deletion. Default is false.
- * @return string
- */
- function get_delete_post_link( $id = 0, $deprecated = '', $force_delete = false ) {
- if ( ! empty( $deprecated ) )
- _deprecated_argument( __FUNCTION__, '3.0' );
- if ( !$post = &get_post( $id ) )
- return;
- $post_type_object = get_post_type_object( $post->post_type );
- if ( !$post_type_object )
- return;
- if ( !current_user_can( $post_type_object->cap->delete_post, $post->ID ) )
- return;
- $action = ( $force_delete || !EMPTY_TRASH_DAYS ) ? 'delete' : 'trash';
- $delete_link = add_query_arg( 'action', $action, admin_url( sprintf( $post_type_object->_edit_link, $post->ID ) ) );
- return apply_filters( 'get_delete_post_link', wp_nonce_url( $delete_link, "$action-{$post->post_type}_{$post->ID}" ), $post->ID, $force_delete );
- }
- /**
- * Retrieve edit comment link.
- *
- * @since 2.3.0
- *
- * @param int $comment_id Optional. Comment ID.
- * @return string
- */
- function get_edit_comment_link( $comment_id = 0 ) {
- $comment = &get_comment( $comment_id );
- if ( !current_user_can( 'edit_comment', $comment->comment_ID ) )
- return;
- $location = admin_url('comment.php?action=editcomment&c=') . $comment->comment_ID;
- return apply_filters( 'get_edit_comment_link', $location );
- }
- /**
- * Display or retrieve edit comment link with formatting.
- *
- * @since 1.0.0
- *
- * @param string $link Optional. Anchor text.
- * @param string $before Optional. Display before edit link.
- * @param string $after Optional. Display after edit link.
- * @return string|null HTML content, if $echo is set to false.
- */
- function edit_comment_link( $link = null, $before = '', $after = '' ) {
- global $comment;
- if ( !current_user_can( 'edit_comment', $comment->comment_ID ) )
- return;
- if ( null === $link )
- $link = __('Edit This');
- $link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . esc_attr__( 'Edit comment' ) . '">' . $link . '</a>';
- echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after;
- }
- /**
- * Display edit bookmark (literally a URL external to blog) link.
- *
- * @since 2.7.0
- *
- * @param int $link Optional. Bookmark ID.
- * @return string
- */
- function get_edit_bookmark_link( $link = 0 ) {
- $link = get_bookmark( $link );
- if ( !current_user_can('manage_links') )
- return;
- $location = admin_url('link.php?action=edit&link_id=') . $link->link_id;
- return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id );
- }
- /**
- * Display edit bookmark (literally a URL external to blog) link anchor content.
- *
- * @since 2.7.0
- *
- * @param string $link Optional. Anchor text.
- * @param string $before Optional. Display before edit link.
- * @param string $after Optional. Display after edit link.
- * @param int $bookmark Optional. Bookmark ID.
- */
- function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) {
- $bookmark = get_bookmark($bookmark);
- if ( !current_user_can('manage_links') )
- return;
- if ( empty($link) )
- $link = __('Edit This');
- $link = '<a href="' . get_edit_bookmark_link( $bookmark ) . '" title="' . esc_attr__( 'Edit Link' ) . '">' . $link . '</a>';
- echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
- }
- // Navigation links
- /**
- * Retrieve previous post that is adjacent to current post.
- *
- * @since 1.5.0
- *
- * @param bool $in_same_cat Optional. Whether post should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
- */
- function get_previous_post($in_same_cat = false, $excluded_categories = '') {
- return get_adjacent_post($in_same_cat, $excluded_categories);
- }
- /**
- * Retrieve next post that is adjacent to current post.
- *
- * @since 1.5.0
- *
- * @param bool $in_same_cat Optional. Whether post should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
- */
- function get_next_post($in_same_cat = false, $excluded_categories = '') {
- return get_adjacent_post($in_same_cat, $excluded_categories, false);
- }
- /**
- * Retrieve adjacent post.
- *
- * Can either be next or previous post.
- *
- * @since 2.5.0
- *
- * @param bool $in_same_cat Optional. Whether post should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @param bool $previous Optional. Whether to retrieve previous post.
- * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
- */
- function get_adjacent_post( $in_same_cat = false, $excluded_categories = '', $previous = true ) {
- global $post, $wpdb;
- if ( empty( $post ) )
- return null;
- $current_post_date = $post->post_date;
- $join = '';
- $posts_in_ex_cats_sql = '';
- if ( $in_same_cat || ! empty( $excluded_categories ) ) {
- $join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
- if ( $in_same_cat ) {
- $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids'));
- $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
- }
- $posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'";
- if ( ! empty( $excluded_categories ) ) {
- if ( ! is_array( $excluded_categories ) ) {
- // back-compat, $excluded_categories used to be IDs separated by " and "
- if ( strpos( $excluded_categories, ' and ' ) !== false ) {
- _deprecated_argument( __FUNCTION__, '3.3', sprintf( __( 'Use commas instead of %s to separate excluded categories.' ), "'and'" ) );
- $excluded_categories = explode( ' and ', $excluded_categories );
- } else {
- $excluded_categories = explode( ',', $excluded_categories );
- }
- }
- $excluded_categories = array_map( 'intval', $excluded_categories );
- if ( ! empty( $cat_array ) ) {
- $excluded_categories = array_diff($excluded_categories, $cat_array);
- $posts_in_ex_cats_sql = '';
- }
- if ( !empty($excluded_categories) ) {
- $posts_in_ex_cats_sql = " AND tt.taxonomy = 'category' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
- }
- }
- }
- $adjacent = $previous ? 'previous' : 'next';
- $op = $previous ? '<' : '>';
- $order = $previous ? 'DESC' : 'ASC';
- $join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_cat, $excluded_categories );
- $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date, $post->post_type), $in_same_cat, $excluded_categories );
- $sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
- $query = "SELECT p.* FROM $wpdb->posts AS p $join $where $sort";
- $query_key = 'adjacent_post_' . md5($query);
- $result = wp_cache_get($query_key, 'counts');
- if ( false !== $result )
- return $result;
- $result = $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort");
- if ( null === $result )
- $result = '';
- wp_cache_set($query_key, $result, 'counts');
- return $result;
- }
- /**
- * Get adjacent post relational link.
- *
- * Can either be next or previous post relational link.
- *
- * @since 2.8.0
- *
- * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @param bool $previous Optional, default is true. Whether to display link to previous or next post.
- * @return string
- */
- function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $previous = true) {
- if ( $previous && is_attachment() && is_object( $GLOBALS['post'] ) )
- $post = & get_post($GLOBALS['post']->post_parent);
- else
- $post = get_adjacent_post($in_same_cat,$excluded_categories,$previous);
- if ( empty($post) )
- return;
- if ( empty($post->post_title) )
- $post->post_title = $previous ? __('Previous Post') : __('Next Post');
- $date = mysql2date(get_option('date_format'), $post->post_date);
- $title = str_replace('%title', $post->post_title, $title);
- $title = str_replace('%date', $date, $title);
- $title = apply_filters('the_title', $title, $post->ID);
- $link = $previous ? "<link rel='prev' title='" : "<link rel='next' title='";
- $link .= esc_attr( $title );
- $link .= "' href='" . get_permalink($post) . "' />\n";
- $adjacent = $previous ? 'previous' : 'next';
- return apply_filters( "{$adjacent}_post_rel_link", $link );
- }
- /**
- * Display relational links for the posts adjacent to the current post.
- *
- * @since 2.8.0
- *
- * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- */
- function adjacent_posts_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
- echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true);
- echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false);
- }
- /**
- * Display relational links for the posts adjacent to the current post for single post pages.
- *
- * This is meant to be attached to actions like 'wp_head'. Do not call this directly in plugins or theme templates.
- * @since 3.0.0
- *
- */
- function adjacent_posts_rel_link_wp_head() {
- if ( !is_singular() || is_attachment() )
- return;
- adjacent_posts_rel_link();
- }
- /**
- * Display relational link for the next post adjacent to the current post.
- *
- * @since 2.8.0
- *
- * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- */
- function next_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
- echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false);
- }
- /**
- * Display relational link for the previous post adjacent to the current post.
- *
- * @since 2.8.0
- *
- * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- */
- function prev_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
- echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true);
- }
- /**
- * Retrieve boundary post.
- *
- * Boundary being either the first or last post by publish date within the constraints specified
- * by $in_same_cat or $excluded_categories.
- *
- * @since 2.8.0
- *
- * @param bool $in_same_cat Optional. Whether returned post should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @param bool $start Optional. Whether to retrieve first or last post.
- * @return object
- */
- function get_boundary_post( $in_same_cat = false, $excluded_categories = '', $start = true ) {
- global $post;
- if ( empty($post) || ! is_single() || is_attachment() )
- return null;
- $cat_array = array();
- if( ! is_array( $excluded_categories ) )
- $excluded_categories = explode( ',', $excluded_categories );
- if ( $in_same_cat || ! empty( $excluded_categories ) ) {
- if ( $in_same_cat )
- $cat_array = wp_get_object_terms( $post->ID, 'category', array( 'fields' => 'ids' ) );
- if ( ! empty( $excluded_categories ) ) {
- $excluded_categories = array_map( 'intval', $excluded_categories );
- $excluded_categories = array_diff( $excluded_categories, $cat_array );
- $inverse_cats = array();
- foreach ( $excluded_categories as $excluded_category )
- $inverse_cats[] = $excluded_category * -1;
- $excluded_categories = $inverse_cats;
- }
- }
- $categories = implode( ',', array_merge( $cat_array, $excluded_categories ) );
- $order = $start ? 'ASC' : 'DESC';
- return get_posts( array('numberposts' => 1, 'category' => $categories, 'order' => $order, 'update_post_term_cache' => false, 'update_post_meta_cache' => false) );
- }
- /**
- * Display previous post link that is adjacent to the current post.
- *
- * @since 1.5.0
- *
- * @param string $format Optional. Link anchor format.
- * @param string $link Optional. Link permalink format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- */
- function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
- adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true);
- }
- /**
- * Display next post link that is adjacent to the current post.
- *
- * @since 1.5.0
- *
- * @param string $format Optional. Link anchor format.
- * @param string $link Optional. Link permalink format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- */
- function next_post_link($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') {
- adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false);
- }
- /**
- * Display adjacent post link.
- *
- * Can be either next post link or previous.
- *
- * @since 2.5.0
- *
- * @param string $format Link anchor format.
- * @param string $link Link permalink format.
- * @param bool $in_same_cat Optional. Whether link should be in a same category.
- * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @param bool $previous Optional, default is true. Whether to display link to previous or next post.
- */
- function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) {
- if ( $previous && is_attachment() )
- $post = & get_post($GLOBALS['post']->post_parent);
- else
- $post = get_adjacent_post($in_same_cat, $excluded_categories, $previous);
- if ( !$post )
- return;
- $title = $post->post_title;
- if ( empty($post->post_title) )
- $title = $previous ? __('Previous Post') : __('Next Post');
- $title = apply_filters('the_title', $title, $post->ID);
- $date = mysql2date(get_option('date_format'), $post->post_date);
- $rel = $previous ? 'prev' : 'next';
- $string = '<a href="'.get_permalink($post).'" rel="'.$rel.'">';
- $link = str_replace('%title', $title, $link);
- $link = str_replace('%date', $date, $link);
- $link = $string . $link . '</a>';
- $format = str_replace('%link', $link, $format);
- $adjacent = $previous ? 'previous' : 'next';
- echo apply_filters( "{$adjacent}_post_link", $format, $link );
- }
- /**
- * Retrieve links for page numbers.
- *
- * @since 1.5.0
- *
- * @param int $pagenum Optional. Page ID.
- * @param bool $escape Optional. Whether to escape the URL for display, with esc_url(). Defaults to true.
- * Otherwise, prepares the URL with esc_url_raw().
- * @return string
- */
- function get_pagenum_link($pagenum = 1, $escape = true ) {
- global $wp_rewrite;
- $pagenum = (int) $pagenum;
- $request = remove_query_arg( 'paged' );
- $home_root = parse_url(home_url());
- $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
- $home_root = preg_quote( trailingslashit( $home_root ), '|' );
- $request = preg_replace('|^'. $home_root . '|', '', $request);
- $request = preg_replace('|^/+|', '', $request);
- if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
- $base = trailingslashit( get_bloginfo( 'url' ) );
- if ( $pagenum > 1 ) {
- $result = add_query_arg( 'paged', $pagenum, $base . $request );
- } else {
- $result = $base . $request;
- }
- } else {
- $qs_regex = '|\?.*?$|';
- preg_match( $qs_regex, $request, $qs_match );
- if ( !empty( $qs_match[0] ) ) {
- $query_string = $qs_match[0];
- $request = preg_replace( $qs_regex, '', $request );
- } else {
- $query_string = '';
- }
- $request = preg_replace( "|$wp_rewrite->pagination_base/\d+/?$|", '', $request);
- $request = preg_replace( '|^index\.php|', '', $request);
- $request = ltrim($request, '/');
- $base = trailingslashit( get_bloginfo( 'url' ) );
- if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) )
- $base .= 'index.php/';
- if ( $pagenum > 1 ) {
- $request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( $wp_rewrite->pagination_base . "/" . $pagenum, 'paged' );
- }
- $result = $base . $request . $query_string;
- }
- $result = apply_filters('get_pagenum_link', $result);
- if ( $escape )
- return esc_url( $result );
- else
- return esc_url_raw( $result );
- }
- /**
- * Retrieve next posts page link.
- *
- * Backported from 2.1.3 to 2.0.10.
- *
- * @since 2.0.10
- *
- * @param int $max_page Optional. Max pages.
- * @return string
- */
- function get_next_posts_page_link($max_page = 0) {
- global $paged;
- if ( !is_single() ) {
- if ( !$paged )
- $paged = 1;
- $nextpage = intval($paged) + 1;
- if ( !$max_page || $max_page >= $nextpage )
- return get_pagenum_link($nextpage);
- }
- }
- /**
- * Display or return the next posts page link.
- *
- * @since 0.71
- *
- * @param int $max_page Optional. Max pages.
- * @param boolean $echo Optional. Echo or return;
- */
- function next_posts( $max_page = 0, $echo = true ) {
- $output = esc_url( get_next_posts_page_link( $max_page ) );
- if ( $echo )
- echo $output;
- else
- return $output;
- }
- /**
- * Return the next posts page link.
- *
- * @since 2.7.0
- *
- * @param string $label Content for link text.
- * @param int $max_page Optional. Max pages.
- * @return string|null
- */
- function get_next_posts_link( $label = null, $max_page = 0 ) {
- global $paged, $wp_query;
- if ( !$max_page )
- $max_page = $wp_query->max_num_pages;
- if ( !$paged )
- $paged = 1;
- $nextpage = intval($paged) + 1;
- if ( null === $label )
- $label = __( 'Next Page »' );
- if ( !is_single() && ( $nextpage <= $max_page ) ) {
- $attr = apply_filters( 'next_posts_link_attributes', '' );
- return '<a href="' . next_posts( $max_page, false ) . "\" $attr>" . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) . '</a>';
- }
- }
- /**
- * Display the next posts page link.
- *
- * @since 0.71
- * @uses get_next_posts_link()
- *
- * @param string $label Content for link text.
- * @param int $max_page Optional. Max pages.
- */
- function next_posts_link( $label = null, $max_page = 0 ) {
- echo get_next_posts_link( $label, $max_page );
- }
- /**
- * Retrieve previous posts page link.
- *
- * Will only return string, if not on a single page or post.
- *
- * Backported to 2.0.10 from 2.1.3.
- *
- * @since 2.0.10
- *
- * @return string|null
- */
- function get_previous_posts_page_link() {
- global $paged;
- if ( !is_single() ) {
- $nextpage = intval($paged) - 1;
- if ( $nextpage < 1 )
- $nextpage = 1;
- return get_pagenum_link($nextpage);
- }
- }
- /**
- * Display or return the previous posts page link.
- *
- * @since 0.71
- *
- * @param boolean $echo Optional. Echo or return;
- */
- function previous_posts( $echo = true ) {
- $output = esc_url( get_previous_posts_page_link() );
- if ( $echo )
- echo $output;
- else
- return $output;
- }
- /**
- * Return the previous posts page link.
- *
- * @since 2.7.0
- *
- * @param string $label Optional. Previous page link text.
- * @return string|null
- */
- function get_previous_posts_link( $label = null ) {
- global $paged;
- if ( null === $label )
- $label = __( '« Previous Page' );
- if ( !is_single() && $paged > 1 ) {
- $attr = apply_filters( 'previous_posts_link_attributes', '' );
- return '<a href="' . previous_posts( false ) . "\" $attr>". preg_replace( '/&([^#])(?![a-z]{1,8};)/i', '&$1', $label ) .'</a>';
- }
- }
- /**
- * Display the previous posts page link.
- *
- * @since 0.71
- * @uses get_previous_posts_link()
- *
- * @param string $label Optional. Previous page link text.
- */
- function previous_posts_link( $label = null ) {
- echo get_previous_posts_link( $label );
- }
- /**
- * Return post pages link navigation for previous and next pages.
- *
- * @since 2.8
- *
- * @param string|array $args Optional args.
- * @return string The posts link navigation.
- */
- function get_posts_nav_link( $args = array() ) {
- global $wp_query;
- $return = '';
- if ( !is_singular() ) {
- $defaults = array(
- 'sep' => ' — ',
- 'prelabel' => __('« Previous Page'),
- 'nxtlabel' => __('Next Page »'),
- );
- $args = wp_parse_args( $args, $defaults );
- $max_num_pages = $wp_query->max_num_pages;
- $paged = get_query_var('paged');
- //only have sep if there's both prev and next results
- if ($paged < 2 || $paged >= $max_num_pages) {
- $args['sep'] = '';
- }
- if ( $max_num_pages > 1 ) {
- $return = get_previous_posts_link($args['prelabel']);
- $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $args['sep']);
- $return .= get_next_posts_link($args['nxtlabel']);
- }
- }
- return $return;
- }
- /**
- * Display post pages link navigation for previous and next pages.
- *
- * @since 0.71
- *
- * @param string $sep Optional. Separator for posts navigation links.
- * @param string $prelabel Optional. Label for previous pages.
- * @param string $nxtlabel Optional Label for next pages.
- */
- function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) {
- $args = array_filter( compact('sep', 'prelabel', 'nxtlabel') );
- echo get_posts_nav_link($args);
- }
- /**
- * Retrieve comments page number link.
- *
- * @since 2.7.0
- *
- * @param int $pagenum Optional. Page number.
- * @return string
- */
- function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
- global $post, $wp_rewrite;
- $pagenum = (int) $pagenum;
- $result = get_permalink( $post->ID );
- if ( 'newest' == get_option('default_comments_page') ) {
- if ( $pagenum != $max_page ) {
- if ( $wp_rewrite->using_permalinks() )
- $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
- else
- $result = add_query_arg( 'cpage', $pagenum, $result );
- }
- } elseif ( $pagenum > 1 ) {
- if ( $wp_rewrite->using_permalinks() )
- $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
- else
- $result = add_query_arg( 'cpage', $pagenum, $result );
- }
- $result .= '#comments';
- $result = apply_filters('get_comments_pagenum_link', $result);
- return $result;
- }
- /**
- * Return the link to next comments page.
- *
- * @since 2.7.1
- *
- * @param string $label Optional. Label for link text.
- * @param int $max_page Optional. Max page.
- * @return string|null
- */
- function get_next_comments_link( $label = '', $max_page …
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