3 * WordPress Link Template Functions
10 * Display the permalink for the current post.
13 * @uses apply_filters() Calls 'the_permalink' filter on the permalink string.
15 function the_permalink() {
16 echo esc_url( apply_filters( 'the_permalink', get_permalink() ) );
20 * Retrieve trailing slash string, if blog set for adding trailing slashes.
22 * Conditionally adds a trailing slash if the permalink structure has a trailing
23 * slash, strips the trailing slash if not. The string is passed through the
24 * 'user_trailingslashit' filter. Will remove trailing slash from string, if
25 * blog is not set to have them.
30 * @param string $string URL with or without a trailing slash.
31 * @param string $type_of_url The type of URL being considered (e.g. single, category, etc) for use in the filter.
34 function user_trailingslashit($string, $type_of_url = '') {
36 if ( $wp_rewrite->use_trailing_slashes )
37 $string = trailingslashit($string);
39 $string = untrailingslashit($string);
41 // Note that $type_of_url can be one of following:
42 // single, single_trackback, single_feed, single_paged, feed, category, page, year, month, day, paged, post_type_archive
43 $string = apply_filters('user_trailingslashit', $string, $type_of_url);
48 * Display permalink anchor for current post.
50 * The permalink mode title will use the post title for the 'a' element 'id'
51 * attribute. The id mode uses 'post-' with the post ID for the 'id' attribute.
55 * @param string $mode Permalink mode can be either 'title', 'id', or default, which is 'id'.
57 function permalink_anchor( $mode = 'id' ) {
59 switch ( strtolower( $mode ) ) {
61 $title = sanitize_title( $post->post_title ) . '-' . $post->ID;
62 echo '<a id="'.$title.'"></a>';
66 echo '<a id="post-' . $post->ID . '"></a>';
72 * Retrieve full permalink for current post or post ID.
76 * @param int|WP_Post $id Optional. Post ID or post object, defaults to the current post.
77 * @param bool $leavename Optional. Whether to keep post name or page name, defaults to false.
78 * @return string|bool The permalink URL or false if post does not exist.
80 function get_permalink( $id = 0, $leavename = false ) {
88 $leavename? '' : '%postname%',
92 $leavename? '' : '%pagename%',
95 if ( is_object($id) && isset($id->filter) && 'sample' == $id->filter ) {
99 $post = get_post($id);
103 if ( empty($post->ID) )
106 if ( $post->post_type == 'page' )
107 return get_page_link($post->ID, $leavename, $sample);
108 elseif ( $post->post_type == 'attachment' )
109 return get_attachment_link( $post->ID, $leavename );
110 elseif ( in_array($post->post_type, get_post_types( array('_builtin' => false) ) ) )
111 return get_post_permalink($post->ID, $leavename, $sample);
113 $permalink = get_option('permalink_structure');
115 $permalink = apply_filters('pre_post_link', $permalink, $post, $leavename);
117 if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending', 'auto-draft')) ) {
118 $unixtime = strtotime($post->post_date);
121 if ( strpos($permalink, '%category%') !== false ) {
122 $cats = get_the_category($post->ID);
124 usort($cats, '_usort_terms_by_ID'); // order by ID
125 $category_object = apply_filters( 'post_link_category', $cats[0], $cats, $post );
126 $category_object = get_term( $category_object, 'category' );
127 $category = $category_object->slug;
128 if ( $parent = $category_object->parent )
129 $category = get_category_parents($parent, false, '/', true) . $category;
131 // show default category in permalinks, without
132 // having to assign it explicitly
133 if ( empty($category) ) {
134 $default_category = get_term( get_option( 'default_category' ), 'category' );
135 $category = is_wp_error( $default_category ) ? '' : $default_category->slug;
140 if ( strpos($permalink, '%author%') !== false ) {
141 $authordata = get_userdata($post->post_author);
142 $author = $authordata->user_nicename;
145 $date = explode(" ",date('Y m d H i s', $unixtime));
160 $permalink = home_url( str_replace($rewritecode, $rewritereplace, $permalink) );
161 $permalink = user_trailingslashit($permalink, 'single');
162 } else { // if they're not using the fancy permalink option
163 $permalink = home_url('?p=' . $post->ID);
165 return apply_filters('post_link', $permalink, $post, $leavename);
169 * Retrieve the permalink for a post with a custom post type.
173 * @param int $id Optional. Post ID.
174 * @param bool $leavename Optional, defaults to false. Whether to keep post name.
175 * @param bool $sample Optional, defaults to false. Is it a sample permalink.
178 function get_post_permalink( $id = 0, $leavename = false, $sample = false ) {
181 $post = get_post($id);
183 if ( is_wp_error( $post ) )
186 $post_link = $wp_rewrite->get_extra_permastruct($post->post_type);
188 $slug = $post->post_name;
190 $draft_or_pending = isset($post->post_status) && in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
192 $post_type = get_post_type_object($post->post_type);
194 if ( !empty($post_link) && ( !$draft_or_pending || $sample ) ) {
195 if ( ! $leavename ) {
196 if ( $post_type->hierarchical )
197 $slug = get_page_uri($id);
198 $post_link = str_replace("%$post->post_type%", $slug, $post_link);
200 $post_link = home_url( user_trailingslashit($post_link) );
202 if ( $post_type->query_var && ( isset($post->post_status) && !$draft_or_pending ) )
203 $post_link = add_query_arg($post_type->query_var, $slug, '');
205 $post_link = add_query_arg(array('post_type' => $post->post_type, 'p' => $post->ID), '');
206 $post_link = home_url($post_link);
209 return apply_filters('post_type_link', $post_link, $post, $leavename, $sample);
213 * Retrieve permalink from post ID.
217 * @param int $post_id Optional. Post ID.
218 * @param mixed $deprecated Not used.
221 function post_permalink( $post_id = 0, $deprecated = '' ) {
222 if ( !empty( $deprecated ) )
223 _deprecated_argument( __FUNCTION__, '1.3' );
225 return get_permalink($post_id);
229 * Retrieve the permalink for current page or page ID.
231 * Respects page_on_front. Use this one.
235 * @param int|object $post Optional. Post ID or object.
236 * @param bool $leavename Optional, defaults to false. Whether to keep page name.
237 * @param bool $sample Optional, defaults to false. Is it a sample permalink.
240 function get_page_link( $post = false, $leavename = false, $sample = false ) {
241 $post = get_post( $post );
243 if ( 'page' == get_option( 'show_on_front' ) && $post->ID == get_option( 'page_on_front' ) )
244 $link = home_url('/');
246 $link = _get_page_link( $post, $leavename, $sample );
248 return apply_filters( 'page_link', $link, $post->ID, $sample );
252 * Retrieve the page permalink.
254 * Ignores page_on_front. Internal use only.
259 * @param int|object $post Optional. Post ID or object.
260 * @param bool $leavename Optional. Leave name.
261 * @param bool $sample Optional. Sample permalink.
264 function _get_page_link( $post = false, $leavename = false, $sample = false ) {
267 $post = get_post( $post );
269 $draft_or_pending = in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
271 $link = $wp_rewrite->get_page_permastruct();
273 if ( !empty($link) && ( ( isset($post->post_status) && !$draft_or_pending ) || $sample ) ) {
274 if ( ! $leavename ) {
275 $link = str_replace('%pagename%', get_page_uri( $post ), $link);
278 $link = home_url($link);
279 $link = user_trailingslashit($link, 'page');
281 $link = home_url( '?page_id=' . $post->ID );
284 return apply_filters( '_get_page_link', $link, $post->ID );
288 * Retrieve permalink for attachment.
290 * This can be used in the WordPress Loop or outside of it.
294 * @param int|object $post Optional. Post ID or object.
295 * @param bool $leavename Optional. Leave name.
298 function get_attachment_link( $post = null, $leavename = false ) {
303 $post = get_post( $post );
304 $parent = ( $post->post_parent > 0 && $post->post_parent != $post->ID ) ? get_post( $post->post_parent ) : false;
306 if ( $wp_rewrite->using_permalinks() && $parent ) {
307 if ( 'page' == $parent->post_type )
308 $parentlink = _get_page_link( $post->post_parent ); // Ignores page_on_front
310 $parentlink = get_permalink( $post->post_parent );
312 if ( is_numeric($post->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') )
313 $name = 'attachment/' . $post->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker
315 $name = $post->post_name;
317 if ( strpos($parentlink, '?') === false )
318 $link = user_trailingslashit( trailingslashit($parentlink) . '%postname%' );
321 $link = str_replace( '%postname%', $name, $link );
325 $link = home_url( '/?attachment_id=' . $post->ID );
327 return apply_filters( 'attachment_link', $link, $post->ID );
331 * Retrieve the permalink for the year archives.
335 * @param int|bool $year False for current year or year for permalink.
338 function get_year_link($year) {
341 $year = gmdate('Y', current_time('timestamp'));
342 $yearlink = $wp_rewrite->get_year_permastruct();
343 if ( !empty($yearlink) ) {
344 $yearlink = str_replace('%year%', $year, $yearlink);
345 return apply_filters('year_link', home_url( user_trailingslashit($yearlink, 'year') ), $year);
347 return apply_filters('year_link', home_url('?m=' . $year), $year);
352 * Retrieve the permalink for the month archives with year.
356 * @param bool|int $year False for current year. Integer of year.
357 * @param bool|int $month False for current month. Integer of month.
360 function get_month_link($year, $month) {
363 $year = gmdate('Y', current_time('timestamp'));
365 $month = gmdate('m', current_time('timestamp'));
366 $monthlink = $wp_rewrite->get_month_permastruct();
367 if ( !empty($monthlink) ) {
368 $monthlink = str_replace('%year%', $year, $monthlink);
369 $monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
370 return apply_filters('month_link', home_url( user_trailingslashit($monthlink, 'month') ), $year, $month);
372 return apply_filters('month_link', home_url( '?m=' . $year . zeroise($month, 2) ), $year, $month);
377 * Retrieve the permalink for the day archives with year and month.
381 * @param bool|int $year False for current year. Integer of year.
382 * @param bool|int $month False for current month. Integer of month.
383 * @param bool|int $day False for current day. Integer of day.
386 function get_day_link($year, $month, $day) {
389 $year = gmdate('Y', current_time('timestamp'));
391 $month = gmdate('m', current_time('timestamp'));
393 $day = gmdate('j', current_time('timestamp'));
395 $daylink = $wp_rewrite->get_day_permastruct();
396 if ( !empty($daylink) ) {
397 $daylink = str_replace('%year%', $year, $daylink);
398 $daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink);
399 $daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
400 return apply_filters('day_link', home_url( user_trailingslashit($daylink, 'day') ), $year, $month, $day);
402 return apply_filters('day_link', home_url( '?m=' . $year . zeroise($month, 2) . zeroise($day, 2) ), $year, $month, $day);
407 * Display the permalink for the feed type.
411 * @param string $anchor The link's anchor text.
412 * @param string $feed Optional, defaults to default feed. Feed type.
414 function the_feed_link( $anchor, $feed = '' ) {
415 $link = '<a href="' . esc_url( get_feed_link( $feed ) ) . '">' . $anchor . '</a>';
416 echo apply_filters( 'the_feed_link', $link, $feed );
420 * Retrieve the permalink for the feed type.
424 * @param string $feed Optional, defaults to default feed. Feed type.
427 function get_feed_link($feed = '') {
430 $permalink = $wp_rewrite->get_feed_permastruct();
431 if ( '' != $permalink ) {
432 if ( false !== strpos($feed, 'comments_') ) {
433 $feed = str_replace('comments_', '', $feed);
434 $permalink = $wp_rewrite->get_comment_feed_permastruct();
437 if ( get_default_feed() == $feed )
440 $permalink = str_replace('%feed%', $feed, $permalink);
441 $permalink = preg_replace('#/+#', '/', "/$permalink");
442 $output = home_url( user_trailingslashit($permalink, 'feed') );
445 $feed = get_default_feed();
447 if ( false !== strpos($feed, 'comments_') )
448 $feed = str_replace('comments_', 'comments-', $feed);
450 $output = home_url("?feed={$feed}");
453 return apply_filters('feed_link', $output, $feed);
457 * Retrieve the permalink for the post comments feed.
461 * @param int $post_id Optional. Post ID.
462 * @param string $feed Optional. Feed type.
465 function get_post_comments_feed_link($post_id = 0, $feed = '') {
466 $post_id = absint( $post_id );
469 $post_id = get_the_ID();
471 if ( empty( $feed ) )
472 $feed = get_default_feed();
474 if ( '' != get_option('permalink_structure') ) {
475 if ( 'page' == get_option('show_on_front') && $post_id == get_option('page_on_front') )
476 $url = _get_page_link( $post_id );
478 $url = get_permalink($post_id);
480 $url = trailingslashit($url) . 'feed';
481 if ( $feed != get_default_feed() )
483 $url = user_trailingslashit($url, 'single_feed');
485 $type = get_post_field('post_type', $post_id);
486 if ( 'page' == $type )
487 $url = add_query_arg( array( 'feed' => $feed, 'page_id' => $post_id ), home_url( '/' ) );
489 $url = add_query_arg( array( 'feed' => $feed, 'p' => $post_id ), home_url( '/' ) );
492 return apply_filters('post_comments_feed_link', $url);
496 * Display the comment feed link for a post.
498 * Prints out the comment feed link for a post. Link text is placed in the
499 * anchor. If no link text is specified, default text is used. If no post ID is
500 * specified, the current post is used.
506 * @param string $link_text Descriptive text.
507 * @param int $post_id Optional post ID. Default to current post.
508 * @param string $feed Optional. Feed format.
509 * @return string Link to the comment feed for the current post.
511 function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) {
512 $url = esc_url( get_post_comments_feed_link( $post_id, $feed ) );
513 if ( empty($link_text) )
514 $link_text = __('Comments Feed');
516 echo apply_filters( 'post_comments_feed_link_html', "<a href='$url'>$link_text</a>", $post_id, $feed );
520 * Retrieve the feed link for a given author.
522 * Returns a link to the feed for all posts by a given author. A specific feed
523 * can be requested or left blank to get the default feed.
529 * @param int $author_id ID of an author.
530 * @param string $feed Optional. Feed type.
531 * @return string Link to the feed for the author specified by $author_id.
533 function get_author_feed_link( $author_id, $feed = '' ) {
534 $author_id = (int) $author_id;
535 $permalink_structure = get_option('permalink_structure');
538 $feed = get_default_feed();
540 if ( '' == $permalink_structure ) {
541 $link = home_url("?feed=$feed&author=" . $author_id);
543 $link = get_author_posts_url($author_id);
544 if ( $feed == get_default_feed() )
547 $feed_link = "feed/$feed";
549 $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
552 $link = apply_filters('author_feed_link', $link, $feed);
558 * Retrieve the feed link for a category.
560 * Returns a link to the feed for all posts in a given category. A specific feed
561 * can be requested or left blank to get the default feed.
567 * @param int $cat_id ID of a category.
568 * @param string $feed Optional. Feed type.
569 * @return string Link to the feed for the category specified by $cat_id.
571 function get_category_feed_link($cat_id, $feed = '') {
572 return get_term_feed_link($cat_id, 'category', $feed);
576 * Retrieve the feed link for a term.
578 * Returns a link to the feed for all posts in a given term. A specific feed
579 * can be requested or left blank to get the default feed.
583 * @param int $term_id ID of a category.
584 * @param string $taxonomy Optional. Taxonomy of $term_id
585 * @param string $feed Optional. Feed type.
586 * @return string Link to the feed for the term specified by $term_id and $taxonomy.
588 function get_term_feed_link( $term_id, $taxonomy = 'category', $feed = '' ) {
589 $term_id = ( int ) $term_id;
591 $term = get_term( $term_id, $taxonomy );
593 if ( empty( $term ) || is_wp_error( $term ) )
596 if ( empty( $feed ) )
597 $feed = get_default_feed();
599 $permalink_structure = get_option( 'permalink_structure' );
601 if ( '' == $permalink_structure ) {
602 if ( 'category' == $taxonomy ) {
603 $link = home_url("?feed=$feed&cat=$term_id");
605 elseif ( 'post_tag' == $taxonomy ) {
606 $link = home_url("?feed=$feed&tag=$term->slug");
608 $t = get_taxonomy( $taxonomy );
609 $link = home_url("?feed=$feed&$t->query_var=$term->slug");
612 $link = get_term_link( $term_id, $term->taxonomy );
613 if ( $feed == get_default_feed() )
616 $feed_link = "feed/$feed";
618 $link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' );
621 if ( 'category' == $taxonomy )
622 $link = apply_filters( 'category_feed_link', $link, $feed );
623 elseif ( 'post_tag' == $taxonomy )
624 $link = apply_filters( 'tag_feed_link', $link, $feed );
626 $link = apply_filters( 'taxonomy_feed_link', $link, $feed, $taxonomy );
632 * Retrieve permalink for feed of tag.
636 * @param int $tag_id Tag ID.
637 * @param string $feed Optional. Feed type.
640 function get_tag_feed_link($tag_id, $feed = '') {
641 return get_term_feed_link($tag_id, 'post_tag', $feed);
645 * Retrieve edit tag link.
649 * @param int $tag_id Tag ID
650 * @param string $taxonomy Taxonomy
653 function get_edit_tag_link( $tag_id, $taxonomy = 'post_tag' ) {
654 return apply_filters( 'get_edit_tag_link', get_edit_term_link( $tag_id, $taxonomy ) );
658 * Display or retrieve edit tag link with formatting.
662 * @param string $link Optional. Anchor text.
663 * @param string $before Optional. Display before edit link.
664 * @param string $after Optional. Display after edit link.
665 * @param object $tag Tag object.
666 * @return string HTML content.
668 function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
669 $link = edit_term_link( $link, '', '', $tag, false );
670 echo $before . apply_filters( 'edit_tag_link', $link ) . $after;
674 * Retrieve edit term url.
678 * @param int $term_id Term ID
679 * @param string $taxonomy Taxonomy
680 * @param string $object_type The object type
683 function get_edit_term_link( $term_id, $taxonomy, $object_type = '' ) {
684 $tax = get_taxonomy( $taxonomy );
685 if ( !current_user_can( $tax->cap->edit_terms ) )
688 $term = get_term( $term_id, $taxonomy );
692 'taxonomy' => $taxonomy,
693 'tag_ID' => $term->term_id,
697 $args['post_type'] = $object_type;
699 $location = add_query_arg( $args, admin_url( 'edit-tags.php' ) );
701 return apply_filters( 'get_edit_term_link', $location, $term_id, $taxonomy, $object_type );
705 * Display or retrieve edit term link with formatting.
709 * @param string $link Optional. Anchor text.
710 * @param string $before Optional. Display before edit link.
711 * @param string $after Optional. Display after edit link.
712 * @param object $term Term object.
713 * @return string HTML content.
715 function edit_term_link( $link = '', $before = '', $after = '', $term = null, $echo = true ) {
716 if ( is_null( $term ) )
717 $term = get_queried_object();
722 $tax = get_taxonomy( $term->taxonomy );
723 if ( ! current_user_can( $tax->cap->edit_terms ) )
726 if ( empty( $link ) )
727 $link = __('Edit This');
729 $link = '<a href="' . get_edit_term_link( $term->term_id, $term->taxonomy ) . '">' . $link . '</a>';
730 $link = $before . apply_filters( 'edit_term_link', $link, $term->term_id ) . $after;
739 * Retrieve permalink for search.
743 * @param string $query Optional. The query string to use. If empty the current query is used.
746 function get_search_link( $query = '' ) {
750 $search = get_search_query( false );
752 $search = stripslashes($query);
754 $permastruct = $wp_rewrite->get_search_permastruct();
756 if ( empty( $permastruct ) ) {
757 $link = home_url('?s=' . urlencode($search) );
759 $search = urlencode($search);
760 $search = str_replace('%2F', '/', $search); // %2F(/) is not valid within a URL, send it unencoded.
761 $link = str_replace( '%search%', $search, $permastruct );
762 $link = home_url( user_trailingslashit( $link, 'search' ) );
765 return apply_filters( 'search_link', $link, $search );
769 * Retrieve the permalink for the feed of the search results.
773 * @param string $search_query Optional. Search query.
774 * @param string $feed Optional. Feed type.
777 function get_search_feed_link($search_query = '', $feed = '') {
779 $link = get_search_link($search_query);
782 $feed = get_default_feed();
784 $permastruct = $wp_rewrite->get_search_permastruct();
786 if ( empty($permastruct) ) {
787 $link = add_query_arg('feed', $feed, $link);
789 $link = trailingslashit($link);
790 $link .= "feed/$feed/";
793 $link = apply_filters('search_feed_link', $link, $feed, 'posts');
799 * Retrieve the permalink for the comments feed of the search results.
803 * @param string $search_query Optional. Search query.
804 * @param string $feed Optional. Feed type.
807 function get_search_comments_feed_link($search_query = '', $feed = '') {
811 $feed = get_default_feed();
813 $link = get_search_feed_link($search_query, $feed);
815 $permastruct = $wp_rewrite->get_search_permastruct();
817 if ( empty($permastruct) )
818 $link = add_query_arg('feed', 'comments-' . $feed, $link);
820 $link = add_query_arg('withcomments', 1, $link);
822 $link = apply_filters('search_feed_link', $link, $feed, 'comments');
828 * Retrieve the permalink for a post type archive.
832 * @param string $post_type Post type
835 function get_post_type_archive_link( $post_type ) {
837 if ( ! $post_type_obj = get_post_type_object( $post_type ) )
840 if ( ! $post_type_obj->has_archive )
843 if ( get_option( 'permalink_structure' ) && is_array( $post_type_obj->rewrite ) ) {
844 $struct = ( true === $post_type_obj->has_archive ) ? $post_type_obj->rewrite['slug'] : $post_type_obj->has_archive;
845 if ( $post_type_obj->rewrite['with_front'] )
846 $struct = $wp_rewrite->front . $struct;
848 $struct = $wp_rewrite->root . $struct;
849 $link = home_url( user_trailingslashit( $struct, 'post_type_archive' ) );
851 $link = home_url( '?post_type=' . $post_type );
854 return apply_filters( 'post_type_archive_link', $link, $post_type );
858 * Retrieve the permalink for a post type archive feed.
862 * @param string $post_type Post type
863 * @param string $feed Optional. Feed type
866 function get_post_type_archive_feed_link( $post_type, $feed = '' ) {
867 $default_feed = get_default_feed();
868 if ( empty( $feed ) )
869 $feed = $default_feed;
871 if ( ! $link = get_post_type_archive_link( $post_type ) )
874 $post_type_obj = get_post_type_object( $post_type );
875 if ( get_option( 'permalink_structure' ) && is_array( $post_type_obj->rewrite ) && $post_type_obj->rewrite['feeds'] ) {
876 $link = trailingslashit( $link );
878 if ( $feed != $default_feed )
881 $link = add_query_arg( 'feed', $feed, $link );
884 return apply_filters( 'post_type_archive_feed_link', $link, $feed );
888 * Retrieve edit posts link for post.
890 * Can be used within the WordPress loop or outside of it. Can be used with
891 * pages, posts, attachments, and revisions.
895 * @param int $id Optional. Post ID.
896 * @param string $context Optional, defaults to display. How to write the '&', defaults to '&'.
899 function get_edit_post_link( $id = 0, $context = 'display' ) {
900 if ( ! $post = get_post( $id ) )
903 if ( 'revision' === $post->post_type )
905 elseif ( 'display' == $context )
906 $action = '&action=edit';
908 $action = '&action=edit';
910 $post_type_object = get_post_type_object( $post->post_type );
911 if ( !$post_type_object )
914 if ( !current_user_can( 'edit_post', $post->ID ) )
917 return apply_filters( 'get_edit_post_link', admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), $post->ID, $context );
921 * Display edit post link for post.
925 * @param string $link Optional. Anchor text.
926 * @param string $before Optional. Display before edit link.
927 * @param string $after Optional. Display after edit link.
928 * @param int $id Optional. Post ID.
930 function edit_post_link( $link = null, $before = '', $after = '', $id = 0 ) {
931 if ( !$post = get_post( $id ) )
934 if ( !$url = get_edit_post_link( $post->ID ) )
937 if ( null === $link )
938 $link = __('Edit This');
940 $post_type_obj = get_post_type_object( $post->post_type );
941 $link = '<a class="post-edit-link" href="' . $url . '">' . $link . '</a>';
942 echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after;
946 * Retrieve delete posts link for post.
948 * Can be used within the WordPress loop or outside of it, with any post type.
952 * @param int $id Optional. Post ID.
953 * @param string $deprecated Not used.
954 * @param bool $force_delete Whether to bypass trash and force deletion. Default is false.
957 function get_delete_post_link( $id = 0, $deprecated = '', $force_delete = false ) {
958 if ( ! empty( $deprecated ) )
959 _deprecated_argument( __FUNCTION__, '3.0' );
961 if ( !$post = get_post( $id ) )
964 $post_type_object = get_post_type_object( $post->post_type );
965 if ( !$post_type_object )
968 if ( !current_user_can( 'delete_post', $post->ID ) )
971 $action = ( $force_delete || !EMPTY_TRASH_DAYS ) ? 'delete' : 'trash';
973 $delete_link = add_query_arg( 'action', $action, admin_url( sprintf( $post_type_object->_edit_link, $post->ID ) ) );
975 return apply_filters( 'get_delete_post_link', wp_nonce_url( $delete_link, "$action-post_{$post->ID}" ), $post->ID, $force_delete );
979 * Retrieve edit comment link.
983 * @param int $comment_id Optional. Comment ID.
986 function get_edit_comment_link( $comment_id = 0 ) {
987 $comment = get_comment( $comment_id );
989 if ( !current_user_can( 'edit_comment', $comment->comment_ID ) )
992 $location = admin_url('comment.php?action=editcomment&c=') . $comment->comment_ID;
993 return apply_filters( 'get_edit_comment_link', $location );
997 * Display or retrieve edit comment link with formatting.
1001 * @param string $link Optional. Anchor text.
1002 * @param string $before Optional. Display before edit link.
1003 * @param string $after Optional. Display after edit link.
1004 * @return string|null HTML content, if $echo is set to false.
1006 function edit_comment_link( $link = null, $before = '', $after = '' ) {
1009 if ( !current_user_can( 'edit_comment', $comment->comment_ID ) )
1012 if ( null === $link )
1013 $link = __('Edit This');
1015 $link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '">' . $link . '</a>';
1016 echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after;
1020 * Display edit bookmark (literally a URL external to blog) link.
1024 * @param int $link Optional. Bookmark ID.
1027 function get_edit_bookmark_link( $link = 0 ) {
1028 $link = get_bookmark( $link );
1030 if ( !current_user_can('manage_links') )
1033 $location = admin_url('link.php?action=edit&link_id=') . $link->link_id;
1034 return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id );
1038 * Display edit bookmark (literally a URL external to blog) link anchor content.
1042 * @param string $link Optional. Anchor text.
1043 * @param string $before Optional. Display before edit link.
1044 * @param string $after Optional. Display after edit link.
1045 * @param int $bookmark Optional. Bookmark ID.
1047 function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) {
1048 $bookmark = get_bookmark($bookmark);
1050 if ( !current_user_can('manage_links') )
1054 $link = __('Edit This');
1056 $link = '<a href="' . get_edit_bookmark_link( $bookmark ) . '">' . $link . '</a>';
1057 echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
1061 * Retrieve edit user link
1065 * @param int $user_id Optional. User ID. Defaults to the current user.
1066 * @return string URL to edit user page or empty string.
1068 function get_edit_user_link( $user_id = null ) {
1070 $user_id = get_current_user_id();
1072 if ( empty( $user_id ) || ! current_user_can( 'edit_user', $user_id ) )
1075 $user = get_userdata( $user_id );
1080 if ( get_current_user_id() == $user->ID )
1081 $link = get_edit_profile_url( $user->ID );
1083 $link = add_query_arg( 'user_id', $user->ID, self_admin_url( 'user-edit.php' ) );
1085 return apply_filters( 'get_edit_user_link', $link, $user->ID );
1091 * Retrieve previous post that is adjacent to current post.
1095 * @param bool $in_same_term Optional. Whether post should be in a same taxonomy term.
1096 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1097 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1098 * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
1100 function get_previous_post( $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
1101 return get_adjacent_post( $in_same_term, $excluded_terms, true, $taxonomy );
1105 * Retrieve next post that is adjacent to current post.
1109 * @param bool $in_same_term Optional. Whether post should be in a same taxonomy term.
1110 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1111 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1112 * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
1114 function get_next_post( $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
1115 return get_adjacent_post( $in_same_term, $excluded_terms, false, $taxonomy );
1119 * Retrieve adjacent post.
1121 * Can either be next or previous post.
1125 * @param bool $in_same_term Optional. Whether post should be in a same taxonomy term.
1126 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1127 * @param bool $previous Optional. Whether to retrieve previous post.
1128 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1129 * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
1131 function get_adjacent_post( $in_same_term = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
1134 if ( ( ! $post = get_post() ) || ! taxonomy_exists( $taxonomy ) )
1137 $current_post_date = $post->post_date;
1140 $posts_in_ex_terms_sql = '';
1141 if ( $in_same_term || ! empty( $excluded_terms ) ) {
1142 $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";
1144 if ( $in_same_term ) {
1145 if ( ! is_object_in_taxonomy( $post->post_type, $taxonomy ) )
1147 $term_array = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'ids' ) );
1148 if ( ! $term_array || is_wp_error( $term_array ) )
1150 $join .= $wpdb->prepare( " AND tt.taxonomy = %s AND tt.term_id IN (" . implode( ',', array_map( 'intval', $term_array ) ) . ")", $taxonomy );
1153 $posts_in_ex_terms_sql = $wpdb->prepare( "AND tt.taxonomy = %s", $taxonomy );
1154 if ( ! empty( $excluded_terms ) ) {
1155 if ( ! is_array( $excluded_terms ) ) {
1156 // back-compat, $excluded_terms used to be $excluded_terms with IDs separated by " and "
1157 if ( false !== strpos( $excluded_terms, ' and ' ) ) {
1158 _deprecated_argument( __FUNCTION__, '3.3', sprintf( __( 'Use commas instead of %s to separate excluded terms.' ), "'and'" ) );
1159 $excluded_terms = explode( ' and ', $excluded_terms );
1161 $excluded_terms = explode( ',', $excluded_terms );
1165 $excluded_terms = array_map( 'intval', $excluded_terms );
1167 if ( ! empty( $term_array ) ) {
1168 $excluded_terms = array_diff( $excluded_terms, $term_array );
1169 $posts_in_ex_terms_sql = '';
1172 if ( ! empty( $excluded_terms ) ) {
1173 $posts_in_ex_terms_sql = $wpdb->prepare( " AND tt.taxonomy = %s AND tt.term_id NOT IN (" . implode( $excluded_terms, ',' ) . ')', $taxonomy );
1178 $adjacent = $previous ? 'previous' : 'next';
1179 $op = $previous ? '<' : '>';
1180 $order = $previous ? 'DESC' : 'ASC';
1182 $join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_term, $excluded_terms );
1183 $where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare( "WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_terms_sql", $current_post_date, $post->post_type), $in_same_term, $excluded_terms );
1184 $sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
1186 $query = "SELECT p.ID FROM $wpdb->posts AS p $join $where $sort";
1187 $query_key = 'adjacent_post_' . md5( $query );
1188 $result = wp_cache_get( $query_key, 'counts' );
1189 if ( false !== $result ) {
1191 $result = get_post( $result );
1195 $result = $wpdb->get_var( $query );
1196 if ( null === $result )
1199 wp_cache_set( $query_key, $result, 'counts' );
1202 $result = get_post( $result );
1208 * Get adjacent post relational link.
1210 * Can either be next or previous post relational link.
1214 * @param string $title Optional. Link title format.
1215 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1216 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1217 * @param bool $previous Optional. Whether to display link to previous or next post. Default true.
1218 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1221 function get_adjacent_post_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
1222 if ( $previous && is_attachment() && $post = get_post() )
1223 $post = get_post( $post->post_parent );
1225 $post = get_adjacent_post( $in_same_term, $excluded_terms, $previous, $taxonomy );
1227 if ( empty( $post ) )
1230 $post_title = the_title_attribute( array( 'echo' => false, 'post' => $post ) );
1232 if ( empty( $post_title ) )
1233 $post_title = $previous ? __( 'Previous Post' ) : __( 'Next Post' );
1235 $date = mysql2date( get_option( 'date_format' ), $post->post_date );
1237 $title = str_replace( '%title', $post_title, $title );
1238 $title = str_replace( '%date', $date, $title );
1240 $link = $previous ? "<link rel='prev' title='" : "<link rel='next' title='";
1241 $link .= esc_attr( $title );
1242 $link .= "' href='" . get_permalink( $post ) . "' />\n";
1244 $adjacent = $previous ? 'previous' : 'next';
1245 return apply_filters( "{$adjacent}_post_rel_link", $link );
1249 * Display relational links for the posts adjacent to the current post.
1253 * @param string $title Optional. Link title format.
1254 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1255 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1256 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1258 function adjacent_posts_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
1259 echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms = '', true, $taxonomy );
1260 echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms = '', false, $taxonomy );
1264 * Display relational links for the posts adjacent to the current post for single post pages.
1266 * This is meant to be attached to actions like 'wp_head'. Do not call this directly in plugins or theme templates.
1270 function adjacent_posts_rel_link_wp_head() {
1271 if ( !is_singular() || is_attachment() )
1273 adjacent_posts_rel_link();
1277 * Display relational link for the next post adjacent to the current post.
1281 * @param string $title Optional. Link title format.
1282 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1283 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1284 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1286 function next_post_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
1287 echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms = '', false, $taxonomy );
1291 * Display relational link for the previous post adjacent to the current post.
1295 * @param string $title Optional. Link title format.
1296 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1297 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs. Default true.
1298 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1300 function prev_post_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
1301 echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms = '', true, $taxonomy );
1305 * Retrieve boundary post.
1307 * Boundary being either the first or last post by publish date within the constraints specified
1308 * by $in_same_term or $excluded_terms.
1312 * @param bool $in_same_term Optional. Whether returned post should be in a same taxonomy term.
1313 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1314 * @param bool $start Optional. Whether to retrieve first or last post.
1315 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1318 function get_boundary_post( $in_same_term = false, $excluded_terms = '', $start = true, $taxonomy = 'category' ) {
1320 if ( ! $post || ! is_single() || is_attachment() || ! taxonomy_exists( $taxonomy ) )
1323 $query_args = array(
1324 'posts_per_page' => 1,
1325 'order' => $start ? 'ASC' : 'DESC',
1326 'update_post_term_cache' => false,
1327 'update_post_meta_cache' => false
1330 $term_array = array();
1332 if ( ! is_array( $excluded_terms ) ) {
1333 if ( ! empty( $excluded_terms ) )
1334 $excluded_terms = explode( ',', $excluded_terms );
1336 $excluded_terms = array();
1339 if ( $in_same_term || ! empty( $excluded_terms ) ) {
1340 if ( $in_same_term )
1341 $term_array = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'ids' ) );
1343 if ( ! empty( $excluded_terms ) ) {
1344 $excluded_terms = array_map( 'intval', $excluded_terms );
1345 $excluded_terms = array_diff( $excluded_terms, $term_array );
1347 $inverse_terms = array();
1348 foreach ( $excluded_terms as $excluded_term )
1349 $inverse_terms[] = $excluded_term * -1;
1350 $excluded_terms = $inverse_terms;
1353 $query_args[ 'tax_query' ] = array( array(
1354 'taxonomy' => $taxonomy,
1355 'terms' => array_merge( $term_array, $excluded_terms )
1359 return get_posts( $query_args );
1363 * Get previous post link that is adjacent to the current post.
1367 * @param string $format Optional. Link anchor format.
1368 * @param string $link Optional. Link permalink format.
1369 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1370 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1371 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1374 function get_previous_post_link( $format = '« %link', $link = '%title', $in_same_cat = false, $excluded_terms = '', $taxonomy = 'category' ) {
1375 return get_adjacent_post_link( $format, $link, $in_same_cat, $excluded_terms, true, $taxonomy );
1379 * Display previous post link that is adjacent to the current post.
1382 * @see get_previous_post_link()
1384 * @param string $format Optional. Link anchor format.
1385 * @param string $link Optional. Link permalink format.
1386 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1387 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1388 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1390 function previous_post_link( $format = '« %link', $link = '%title', $in_same_cat = false, $excluded_terms = '', $taxonomy = 'category' ) {
1391 echo get_previous_post_link( $format, $link, $in_same_cat, $excluded_terms, $taxonomy );
1395 * Get next post link that is adjacent to the current post.
1399 * @param string $format Optional. Link anchor format.
1400 * @param string $link Optional. Link permalink format.
1401 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1402 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1403 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1406 function get_next_post_link( $format = '%link »', $link = '%title', $in_same_cat = false, $excluded_terms = '', $taxonomy = 'category' ) {
1407 return get_adjacent_post_link( $format, $link, $in_same_cat, $excluded_terms, false, $taxonomy );
1411 * Display next post link that is adjacent to the current post.
1414 * @see get_next_post_link()
1416 * @param string $format Optional. Link anchor format.
1417 * @param string $link Optional. Link permalink format.
1418 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1419 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
1420 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1422 function next_post_link( $format = '%link »', $link = '%title', $in_same_cat = false, $excluded_terms = '', $taxonomy = 'category' ) {
1423 echo get_next_post_link( $format, $link, $in_same_cat, $excluded_terms, $taxonomy );
1427 * Get adjacent post link.
1429 * Can be either next post link or previous.
1433 * @param string $format Link anchor format.
1434 * @param string $link Link permalink format.
1435 * @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
1436 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded terms IDs.
1437 * @param bool $previous Optional. Whether to display link to previous or next post. Default true.
1438 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1441 function get_adjacent_post_link( $format, $link, $in_same_cat = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
1442 if ( $previous && is_attachment() )
1443 $post = get_post( get_post()->post_parent );
1445 $post = get_adjacent_post( $in_same_cat, $excluded_terms, $previous, $taxonomy );
1450 $title = $post->post_title;
1452 if ( empty( $post->post_title ) )
1453 $title = $previous ? __( 'Previous Post' ) : __( 'Next Post' );
1455 /** This filter is documented in wp-includes/post-template.php */
1456 $title = apply_filters( 'the_title', $title, $post->ID );
1457 $date = mysql2date( get_option( 'date_format' ), $post->post_date );
1458 $rel = $previous ? 'prev' : 'next';
1460 $string = '<a href="' . get_permalink( $post ) . '" rel="'.$rel.'">';
1461 $inlink = str_replace( '%title', $title, $link );
1462 $inlink = str_replace( '%date', $date, $inlink );
1463 $inlink = $string . $inlink . '</a>';
1465 $output = str_replace( '%link', $inlink, $format );
1468 $adjacent = $previous ? 'previous' : 'next';
1470 return apply_filters( "{$adjacent}_post_link", $output, $format, $link, $post );
1474 * Display adjacent post link.
1476 * Can be either next post link or previous.
1479 * @uses get_adjacent_post_link()
1481 * @param string $format Link anchor format.
1482 * @param string $link Link permalink format.
1483 * @param bool $in_same_cat Optional. Whether link should be in a same category.
1484 * @param array|string $excluded_terms Optional. Array or comma-separated list of excluded category IDs.
1485 * @param bool $previous Optional. Whether to display link to previous or next post. Default true.
1486 * @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
1489 function adjacent_post_link( $format, $link, $in_same_cat = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
1490 echo get_adjacent_post_link( $format, $link, $in_same_cat, $excluded_terms, $previous, $taxonomy );
1494 * Retrieve links for page numbers.
1498 * @param int $pagenum Optional. Page ID.
1499 * @param bool $escape Optional. Whether to escape the URL for display, with esc_url(). Defaults to true.
1500 * Otherwise, prepares the URL with esc_url_raw().
1503 function get_pagenum_link($pagenum = 1, $escape = true ) {
1506 $pagenum = (int) $pagenum;
1508 $request = remove_query_arg( 'paged' );
1510 $home_root = parse_url(home_url());
1511 $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
1512 $home_root = preg_quote( $home_root, '|' );
1514 $request = preg_replace('|^'. $home_root . '|i', '', $request);
1515 $request = preg_replace('|^/+|', '', $request);
1517 if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
1518 $base = trailingslashit( get_bloginfo( 'url' ) );
1520 if ( $pagenum > 1 ) {
1521 $result = add_query_arg( 'paged', $pagenum, $base . $request );
1523 $result = $base . $request;
1526 $qs_regex = '|\?.*?$|';
1527 preg_match( $qs_regex, $request, $qs_match );
1529 if ( !empty( $qs_match[0] ) ) {
1530 $query_string = $qs_match[0];
1531 $request = preg_replace( $qs_regex, '', $request );
1536 $request = preg_replace( "|$wp_rewrite->pagination_base/\d+/?$|", '', $request);
1537 $request = preg_replace( '|^' . preg_quote( $wp_rewrite->index, '|' ) . '|i', '', $request);
1538 $request = ltrim($request, '/');
1540 $base = trailingslashit( get_bloginfo( 'url' ) );
1542 if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) )
1543 $base .= $wp_rewrite->index . '/';
1545 if ( $pagenum > 1 ) {
1546 $request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( $wp_rewrite->pagination_base . "/" . $pagenum, 'paged' );
1549 $result = $base . $request . $query_string;
1552 $result = apply_filters('get_pagenum_link', $result);
1555 return esc_url( $result );
1557 return esc_url_raw( $result );
1561 * Retrieve next posts page link.
1563 * Backported from 2.1.3 to 2.0.10.
1567 * @param int $max_page Optional. Max pages.
1570 function get_next_posts_page_link($max_page = 0) {
1573 if ( !is_single() ) {
1576 $nextpage = intval($paged) + 1;
1577 if ( !$max_page || $max_page >= $nextpage )
1578 return get_pagenum_link($nextpage);
1583 * Display or return the next posts page link.
1587 * @param int $max_page Optional. Max pages.
1588 * @param boolean $echo Optional. Echo or return;
1590 function next_posts( $max_page = 0, $echo = true ) {
1591 $output = esc_url( get_next_posts_page_link( $max_page ) );
1600 * Return the next posts page link.
1604 * @param string $label Content for link text.
1605 * @param int $max_page Optional. Max pages.
1606 * @return string|null
1608 function get_next_posts_link( $label = null, $max_page = 0 ) {
1609 global $paged, $wp_query;
1612 $max_page = $wp_query->max_num_pages;
1617 $nextpage = intval($paged) + 1;
1619 if ( null === $label )
1620 $label = __( 'Next Page »' );
1622 if ( !is_single() && ( $nextpage <= $max_page ) ) {
1623 $attr = apply_filters( 'next_posts_link_attributes', '' );
1624 return '<a href="' . next_posts( $max_page, false ) . "\" $attr>" . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) . '</a>';
1629 * Display the next posts page link.
1632 * @uses get_next_posts_link()
1634 * @param string $label Content for link text.
1635 * @param int $max_page Optional. Max pages.
1637 function next_posts_link( $label = null, $max_page = 0 ) {
1638 echo get_next_posts_link( $label, $max_page );
1642 * Retrieve previous posts page link.
1644 * Will only return string, if not on a single page or post.
1646 * Backported to 2.0.10 from 2.1.3.
1650 * @return string|null
1652 function get_previous_posts_page_link() {
1655 if ( !is_single() ) {
1656 $nextpage = intval($paged) - 1;
1657 if ( $nextpage < 1 )
1659 return get_pagenum_link($nextpage);
1664 * Display or return the previous posts page link.
1668 * @param boolean $echo Optional. Echo or return;
1670 function previous_posts( $echo = true ) {
1671 $output = esc_url( get_previous_posts_page_link() );
1680 * Return the previous posts page link.
1684 * @param string $label Optional. Previous page link text.
1685 * @return string|null
1687 function get_previous_posts_link( $label = null ) {
1690 if ( null === $label )
1691 $label = __( '« Previous Page' );
1693 if ( !is_single() && $paged > 1 ) {
1694 $attr = apply_filters( 'previous_posts_link_attributes', '' );
1695 return '<a href="' . previous_posts( false ) . "\" $attr>". preg_replace( '/&([^#])(?![a-z]{1,8};)/i', '&$1', $label ) .'</a>';
1700 * Display the previous posts page link.
1703 * @uses get_previous_posts_link()
1705 * @param string $label Optional. Previous page link text.
1707 function previous_posts_link( $label = null ) {
1708 echo get_previous_posts_link( $label );
1712 * Return post pages link navigation for previous and next pages.
1716 * @param string|array $args Optional args.
1717 * @return string The posts link navigation.
1719 function get_posts_nav_link( $args = array() ) {
1724 if ( !is_singular() ) {
1726 'sep' => ' — ',
1727 'prelabel' => __('« Previous Page'),
1728 'nxtlabel' => __('Next Page »'),
1730 $args = wp_parse_args( $args, $defaults );
1732 $max_num_pages = $wp_query->max_num_pages;
1733 $paged = get_query_var('paged');
1735 //only have sep if there's both prev and next results
1736 if ($paged < 2 || $paged >= $max_num_pages) {
1740 if ( $max_num_pages > 1 ) {
1741 $return = get_previous_posts_link($args['prelabel']);
1742 $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $args['sep']);
1743 $return .= get_next_posts_link($args['nxtlabel']);
1751 * Display post pages link navigation for previous and next pages.
1755 * @param string $sep Optional. Separator for posts navigation links.
1756 * @param string $prelabel Optional. Label for previous pages.
1757 * @param string $nxtlabel Optional Label for next pages.
1759 function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) {
1760 $args = array_filter( compact('sep', 'prelabel', 'nxtlabel') );
1761 echo get_posts_nav_link($args);
1765 * Retrieve comments page number link.
1769 * @param int $pagenum Optional. Page number.
1772 function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
1775 $pagenum = (int) $pagenum;
1777 $result = get_permalink();
1779 if ( 'newest' == get_option('default_comments_page') ) {
1780 if ( $pagenum != $max_page ) {
1781 if ( $wp_rewrite->using_permalinks() )
1782 $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
1784 $result = add_query_arg( 'cpage', $pagenum, $result );
1786 } elseif ( $pagenum > 1 ) {
1787 if ( $wp_rewrite->using_permalinks() )
1788 $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
1790 $result = add_query_arg( 'cpage', $pagenum, $result );
1793 $result .= '#comments';
1795 $result = apply_filters('get_comments_pagenum_link', $result);
1801 * Return the link to next comments page.
1805 * @param string $label Optional. Label for link text.
1806 * @param int $max_page Optional. Max page.
1807 * @return string|null
1809 function get_next_comments_link( $label = '', $max_page = 0 ) {
1812 if ( !is_singular() || !get_option('page_comments') )
1815 $page = get_query_var('cpage');
1817 $nextpage = intval($page) + 1;
1819 if ( empty($max_page) )
1820 $max_page = $wp_query->max_num_comment_pages;
1822 if ( empty($max_page) )
1823 $max_page = get_comment_pages_count();
1825 if ( $nextpage > $max_page )
1828 if ( empty($label) )
1829 $label = __('Newer Comments »');
1831 return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .'</a>';
1835 * Display the link to next comments page.
1839 * @param string $label Optional. Label for link text.
1840 * @param int $max_page Optional. Max page.
1842 function next_comments_link( $label = '', $max_page = 0 ) {
1843 echo get_next_comments_link( $label, $max_page );
1847 * Return the previous comments page link.
1851 * @param string $label Optional. Label for comments link text.
1852 * @return string|null
1854 function get_previous_comments_link( $label = '' ) {
1855 if ( !is_singular() || !get_option('page_comments') )
1858 $page = get_query_var('cpage');
1860 if ( intval($page) <= 1 )
1863 $prevpage = intval($page) - 1;
1865 if ( empty($label) )
1866 $label = __('« Older Comments');
1868 return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .'</a>';
1872 * Display the previous comments page link.
1876 * @param string $label Optional. Label for comments link text.
1878 function previous_comments_link( $label = '' ) {
1879 echo get_previous_comments_link( $label );
1883 * Create pagination links for the comments on the current post.
1885 * @see paginate_links()
1888 * @param string|array $args Optional args. See paginate_links().
1889 * @return string Markup for pagination links.
1891 function paginate_comments_links($args = array()) {
1894 if ( !is_singular() || !get_option('page_comments') )
1897 $page = get_query_var('cpage');
1900 $max_page = get_comment_pages_count();
1902 'base' => add_query_arg( 'cpage', '%#%' ),
1904 'total' => $max_page,
1907 'add_fragment' => '#comments'
1909 if ( $wp_rewrite->using_permalinks() )
1910 $defaults['base'] = user_trailingslashit(trailingslashit(get_permalink()) . 'comment-page-%#%', 'commentpaged');
1912 $args = wp_parse_args( $args, $defaults );
1913 $page_links = paginate_links( $args );
1915 if ( $args['echo'] )
1922 * Retrieve the Press This bookmarklet link.
1924 * Use this in 'a' element 'href' attribute.
1930 function get_shortcut_link() {
1931 // In case of breaking changes, version this. #WP20071
1932 $link = "javascript:
1938 s=(e?e():(k)?k():(x?x.createRange().text:0)),
1939 f='" . admin_url('press-this.php') . "',
1941 e=encodeURIComponent,
1942 u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4';
1943 a=function(){if(!w.open(u,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;};
1944 if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a();
1947 $link = str_replace(array("\r", "\n", "\t"), '', $link);
1949 return apply_filters('shortcut_link', $link);
1953 * Retrieve the home url for the current site.
1955 * Returns the 'home' option with the appropriate protocol, 'https' if
1956 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
1959 * @package WordPress
1962 * @uses get_home_url()
1964 * @param string $path (optional) Path relative to the home url.
1965 * @param string $scheme (optional) Scheme to give the home url context. Currently 'http', 'https', or 'relative'.
1966 * @return string Home url link with optional path appended.
1968 function home_url( $path = '', $scheme = null ) {
1969 return get_home_url( null, $path, $scheme );
1973 * Retrieve the home url for a given site.
1975 * Returns the 'home' option with the appropriate protocol, 'https' if
1976 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
1979 * @package WordPress
1982 * @param int $blog_id (optional) Blog ID. Defaults to current blog.
1983 * @param string $path (optional) Path relative to the home url.
1984 * @param string $scheme (optional) Scheme to give the home url context. Currently 'http', 'https', or 'relative'.
1985 * @return string Home url link with optional path appended.
1987 function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
1988 $orig_scheme = $scheme;
1990 if ( empty( $blog_id ) || !is_multisite() ) {
1991 $url = get_option( 'home' );
1993 switch_to_blog( $blog_id );
1994 $url = get_option( 'home' );
1995 restore_current_blog();
1998 if ( ! in_array( $scheme, array( 'http', 'https', 'relative' ) ) ) {
1999 if ( is_ssl() && ! is_admin() && 'wp-login.php' !== $GLOBALS['pagenow'] )
2002 $scheme = parse_url( $url, PHP_URL_SCHEME );
2005 $url = set_url_scheme( $url, $scheme );
2007 if ( $path && is_string( $path ) )
2008 $url .= '/' . ltrim( $path, '/' );
2010 return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id );
2014 * Retrieve the site url for the current site.
2016 * Returns the 'site_url' option with the appropriate protocol, 'https' if
2017 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
2020 * @package WordPress
2023 * @uses get_site_url()
2025 * @param string $path Optional. Path relative to the site url.
2026 * @param string $scheme Optional. Scheme to give the site url context. See set_url_scheme().
2027 * @return string Site url link with optional path appended.
2029 function site_url( $path = '', $scheme = null ) {
2030 return get_site_url( null, $path, $scheme );
2034 * Retrieve the site url for a given site.
2036 * Returns the 'site_url' option with the appropriate protocol, 'https' if
2037 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
2040 * @package WordPress
2043 * @param int $blog_id (optional) Blog ID. Defaults to current blog.
2044 * @param string $path Optional. Path relative to the site url.
2045 * @param string $scheme Optional. Scheme to give the site url context. Currently 'http', 'https', 'login', 'login_post', 'admin', or 'relative'.
2046 * @return string Site url link with optional path appended.
2048 function get_site_url( $blog_id = null, $path = '', $scheme = null ) {
2049 if ( empty( $blog_id ) || !is_multisite() ) {
2050 $url = get_option( 'siteurl' );
2052 switch_to_blog( $blog_id );
2053 $url = get_option( 'siteurl' );
2054 restore_current_blog();
2057 $url = set_url_scheme( $url, $scheme );
2059 if ( $path && is_string( $path ) )
2060 $url .= '/' . ltrim( $path, '/' );
2062 return apply_filters( 'site_url', $url, $path, $scheme, $blog_id );
2066 * Retrieve the url to the admin area for the current site.
2068 * @package WordPress
2071 * @param string $path Optional path relative to the admin url.
2072 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2073 * @return string Admin url link with optional path appended.
2075 function admin_url( $path = '', $scheme = 'admin' ) {
2076 return get_admin_url( null, $path, $scheme );
2080 * Retrieve the url to the admin area for a given site.
2082 * @package WordPress
2085 * @param int $blog_id (optional) Blog ID. Defaults to current blog.
2086 * @param string $path Optional path relative to the admin url.
2087 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2088 * @return string Admin url link with optional path appended.
2090 function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) {
2091 $url = get_site_url($blog_id, 'wp-admin/', $scheme);
2093 if ( $path && is_string( $path ) )
2094 $url .= ltrim( $path, '/' );
2096 return apply_filters( 'admin_url', $url, $path, $blog_id );
2100 * Retrieve the url to the includes directory.
2102 * @package WordPress
2105 * @param string $path Optional. Path relative to the includes url.
2106 * @param string $scheme Optional. Scheme to give the includes url context.
2107 * @return string Includes url link with optional path appended.
2109 function includes_url( $path = '', $scheme = null ) {
2110 $url = site_url( '/' . WPINC . '/', $scheme );
2112 if ( $path && is_string( $path ) )
2113 $url .= ltrim($path, '/');
2115 return apply_filters('includes_url', $url, $path);
2119 * Retrieve the url to the content directory.
2121 * @package WordPress
2124 * @param string $path Optional. Path relative to the content url.
2125 * @return string Content url link with optional path appended.
2127 function content_url($path = '') {
2128 $url = set_url_scheme( WP_CONTENT_URL );
2130 if ( $path && is_string( $path ) )
2131 $url .= '/' . ltrim($path, '/');
2133 return apply_filters('content_url', $url, $path);
2137 * Retrieve the url to the plugins directory or to a specific file within that directory.
2138 * You can hardcode the plugin slug in $path or pass __FILE__ as a second argument to get the correct folder name.
2140 * @package WordPress
2143 * @param string $path Optional. Path relative to the plugins url.
2144 * @param string $plugin Optional. The plugin file that you want to be relative to - i.e. pass in __FILE__
2145 * @return string Plugins url link with optional path appended.
2147 function plugins_url($path = '', $plugin = '') {
2149 $mu_plugin_dir = WPMU_PLUGIN_DIR;
2150 foreach ( array('path', 'plugin', 'mu_plugin_dir') as $var ) {
2151 $$var = str_replace('\\' ,'/', $$var); // sanitize for Win32 installs
2152 $$var = preg_replace('|/+|', '/', $$var);
2155 if ( !empty($plugin) && 0 === strpos($plugin, $mu_plugin_dir) )
2156 $url = WPMU_PLUGIN_URL;
2158 $url = WP_PLUGIN_URL;
2161 $url = set_url_scheme( $url );
2163 if ( !empty($plugin) && is_string($plugin) ) {
2164 $folder = dirname(plugin_basename($plugin));
2165 if ( '.' != $folder )
2166 $url .= '/' . ltrim($folder, '/');
2169 if ( $path && is_string( $path ) )
2170 $url .= '/' . ltrim($path, '/');
2172 return apply_filters('plugins_url', $url, $path, $plugin);
2176 * Retrieve the site url for the current network.
2178 * Returns the site url with the appropriate protocol, 'https' if
2179 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
2182 * @package WordPress
2185 * @param string $path Optional. Path relative to the site url.
2186 * @param string $scheme Optional. Scheme to give the site url context. See set_url_scheme().
2187 * @return string Site url link with optional path appended.
2189 function network_site_url( $path = '', $scheme = null ) {
2190 if ( ! is_multisite() )
2191 return site_url($path, $scheme);
2193 $current_site = get_current_site();
2195 if ( 'relative' == $scheme )
2196 $url = $current_site->path;
2198 $url = set_url_scheme( 'http://' . $current_site->domain . $current_site->path, $scheme );
2200 if ( $path && is_string( $path ) )
2201 $url .= ltrim( $path, '/' );
2203 return apply_filters( 'network_site_url', $url, $path, $scheme );
2207 * Retrieve the home url for the current network.
2209 * Returns the home url with the appropriate protocol, 'https' if
2210 * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
2213 * @package WordPress
2216 * @param string $path (optional) Path relative to the home url.
2217 * @param string $scheme (optional) Scheme to give the home url context. Currently 'http', 'https', or 'relative'.
2218 * @return string Home url link with optional path appended.
2220 function network_home_url( $path = '', $scheme = null ) {
2221 if ( ! is_multisite() )
2222 return home_url($path, $scheme);
2224 $current_site = get_current_site();
2225 $orig_scheme = $scheme;
2227 if ( ! in_array( $scheme, array( 'http', 'https', 'relative' ) ) )
2228 $scheme = is_ssl() && ! is_admin() ? 'https' : 'http';
2230 if ( 'relative' == $scheme )
2231 $url = $current_site->path;
2233 $url = set_url_scheme( 'http://' . $current_site->domain . $current_site->path, $scheme );
2235 if ( $path && is_string( $path ) )
2236 $url .= ltrim( $path, '/' );
2238 return apply_filters( 'network_home_url', $url, $path, $orig_scheme);
2242 * Retrieve the url to the admin area for the network.
2244 * @package WordPress
2247 * @param string $path Optional path relative to the admin url.
2248 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2249 * @return string Admin url link with optional path appended.
2251 function network_admin_url( $path = '', $scheme = 'admin' ) {
2252 if ( ! is_multisite() )
2253 return admin_url( $path, $scheme );
2255 $url = network_site_url('wp-admin/network/', $scheme);
2257 if ( $path && is_string( $path ) )
2258 $url .= ltrim($path, '/');
2260 return apply_filters('network_admin_url', $url, $path);
2264 * Retrieve the url to the admin area for the current user.
2266 * @package WordPress
2269 * @param string $path Optional path relative to the admin url.
2270 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2271 * @return string Admin url link with optional path appended.
2273 function user_admin_url( $path = '', $scheme = 'admin' ) {
2274 $url = network_site_url('wp-admin/user/', $scheme);
2276 if ( $path && is_string( $path ) )
2277 $url .= ltrim($path, '/');
2279 return apply_filters('user_admin_url', $url, $path);
2283 * Retrieve the url to the admin area for either the current blog or the network depending on context.
2285 * @package WordPress
2288 * @param string $path Optional path relative to the admin url.
2289 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2290 * @return string Admin url link with optional path appended.
2292 function self_admin_url($path = '', $scheme = 'admin') {
2293 if ( is_network_admin() )
2294 return network_admin_url($path, $scheme);
2295 elseif ( is_user_admin() )
2296 return user_admin_url($path, $scheme);
2298 return admin_url($path, $scheme);
2302 * Set the scheme for a URL
2306 * @param string $url Absolute url that includes a scheme
2307 * @param string $scheme Optional. Scheme to give $url. Currently 'http', 'https', 'login', 'login_post', 'admin', or 'relative'.
2308 * @return string $url URL with chosen scheme.
2310 function set_url_scheme( $url, $scheme = null ) {
2311 $orig_scheme = $scheme;
2312 if ( ! in_array( $scheme, array( 'http', 'https', 'relative' ) ) ) {
2313 if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) )
2315 elseif ( ( 'login' == $scheme ) && force_ssl_admin() )
2317 elseif ( ( 'admin' == $scheme ) && force_ssl_admin() )
2320 $scheme = ( is_ssl() ? 'https' : 'http' );
2323 $url = trim( $url );
2324 if ( substr( $url, 0, 2 ) === '//' )
2325 $url = 'http:' . $url;
2327 if ( 'relative' == $scheme ) {
2328 $url = ltrim( preg_replace( '#^\w+://[^/]*#', '', $url ) );
2329 if ( $url !== '' && $url[0] === '/' )
2330 $url = '/' . ltrim($url , "/ \t\n\r\0\x0B" );
2332 $url = preg_replace( '#^\w+://#', $scheme . '://', $url );
2335 return apply_filters( 'set_url_scheme', $url, $scheme, $orig_scheme );
2339 * Get the URL to the user's dashboard.
2341 * If a user does not belong to any site, the global user dashboard is used. If the user belongs to the current site,
2342 * the dashboard for the current site is returned. If the user cannot edit the current site, the dashboard to the user's
2343 * primary blog is returned.
2347 * @param int $user_id User ID
2348 * @param string $path Optional path relative to the dashboard. Use only paths known to both blog and user admins.
2349 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2350 * @return string Dashboard url link with optional path appended.
2352 function get_dashboard_url( $user_id, $path = '', $scheme = 'admin' ) {
2353 $user_id = (int) $user_id;
2355 $blogs = get_blogs_of_user( $user_id );
2356 if ( ! is_super_admin() && empty($blogs) ) {
2357 $url = user_admin_url( $path, $scheme );
2358 } elseif ( ! is_multisite() ) {
2359 $url = admin_url( $path, $scheme );
2361 $current_blog = get_current_blog_id();
2362 if ( $current_blog && ( is_super_admin( $user_id ) || in_array( $current_blog, array_keys( $blogs ) ) ) ) {
2363 $url = admin_url( $path, $scheme );
2365 $active = get_active_blog_for_user( $user_id );
2367 $url = get_admin_url( $active->blog_id, $path, $scheme );
2369 $url = user_admin_url( $path, $scheme );
2373 return apply_filters( 'user_dashboard_url', $url, $user_id, $path, $scheme);
2377 * Get the URL to the user's profile editor.
2381 * @param int $user User ID
2382 * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
2383 * @return string Dashboard url link with optional path appended.
2385 function get_edit_profile_url( $user, $scheme = 'admin' ) {
2386 $user = (int) $user;
2388 if ( is_user_admin() )
2389 $url = user_admin_url( 'profile.php', $scheme );
2390 elseif ( is_network_admin() )
2391 $url = network_admin_url( 'profile.php', $scheme );
2393 $url = get_dashboard_url( $user, 'profile.php', $scheme );
2395 return apply_filters( 'edit_profile_url', $url, $user, $scheme);
2399 * Output rel=canonical for singular queries.
2401 * @package WordPress
2404 function rel_canonical() {
2405 if ( !is_singular() )
2408 global $wp_the_query;
2409 if ( !$id = $wp_the_query->get_queried_object_id() )
2412 $link = get_permalink( $id );
2414 if ( $page = get_query_var('cpage') )
2415 $link = get_comments_pagenum_link( $page );
2417 echo "<link rel='canonical' href='$link' />\n";
2421 * Return a shortlink for a post, page, attachment, or blog.
2423 * This function exists to provide a shortlink tag that all themes and plugins can target. A plugin must hook in to
2424 * provide the actual shortlinks. Default shortlink support is limited to providing ?p= style links for posts.
2425 * Plugins can short-circuit this function via the pre_get_shortlink filter or filter the output
2426 * via the get_shortlink filter.
2430 * @param int $id A post or blog id. Default is 0, which means the current post or blog.
2431 * @param string $context Whether the id is a 'blog' id, 'post' id, or 'media' id. If 'post', the post_type of the post is consulted. If 'query', the current query is consulted to determine the id and context. Default is 'post'.
2432 * @param bool $allow_slugs Whether to allow post slugs in the shortlink. It is up to the plugin how and whether to honor this.
2433 * @return string A shortlink or an empty string if no shortlink exists for the requested resource or if shortlinks are not enabled.
2435 function wp_get_shortlink($id = 0, $context = 'post', $allow_slugs = true) {
2436 // Allow plugins to short-circuit this function.
2437 $shortlink = apply_filters('pre_get_shortlink', false, $id, $context, $allow_slugs);
2438 if ( false !== $shortlink )
2443 if ( 'query' == $context && is_singular() ) {
2444 $post_id = $wp_query->get_queried_object_id();
2445 $post = get_post( $post_id );
2446 } elseif ( 'post' == $context ) {
2447 $post = get_post( $id );
2448 if ( ! empty( $post->ID ) )
2449 $post_id = $post->ID;
2454 // Return p= link for all public post types.
2455 if ( ! empty( $post_id ) ) {
2456 $post_type = get_post_type_object( $post->post_type );
2457 if ( $post_type->public )
2458 $shortlink = home_url('?p=' . $post_id);
2461 return apply_filters('get_shortlink', $shortlink, $id, $context, $allow_slugs);
2465 * Inject rel=shortlink into head if a shortlink is defined for the current page.
2467 * Attached to the wp_head action.
2471 * @uses wp_get_shortlink()
2473 function wp_shortlink_wp_head() {
2474 $shortlink = wp_get_shortlink( 0, 'query' );
2476 if ( empty( $shortlink ) )
2479 echo "<link rel='shortlink' href='" . esc_url( $shortlink ) . "' />\n";
2483 * Send a Link: rel=shortlink header if a shortlink is defined for the current page.
2485 * Attached to the wp action.
2489 * @uses wp_get_shortlink()
2491 function wp_shortlink_header() {
2492 if ( headers_sent() )
2495 $shortlink = wp_get_shortlink(0, 'query');
2497 if ( empty($shortlink) )
2500 header('Link: <' . $shortlink . '>; rel=shortlink', false);
2504 * Display the Short Link for a Post
2506 * Must be called from inside "The Loop"
2508 * Call like the_shortlink(__('Shortlinkage FTW'))
2512 * @param string $text Optional The link text or HTML to be displayed. Defaults to 'This is the short link.'
2513 * @param string $title Optional The tooltip for the link. Must be sanitized. Defaults to the sanitized post title.
2514 * @param string $before Optional HTML to display before the link.
2515 * @param string $after Optional HTML to display after the link.
2517 function the_shortlink( $text = '', $title = '', $before = '', $after = '' ) {
2520 if ( empty( $text ) )
2521 $text = __('This is the short link.');
2523 if ( empty( $title ) )
2524 $title = the_title_attribute( array( 'echo' => false ) );
2526 $shortlink = wp_get_shortlink( $post->ID );
2528 if ( !empty( $shortlink ) ) {
2529 $link = '<a rel="shortlink" href="' . esc_url( $shortlink ) . '" title="' . $title . '">' . $text . '</a>';
2530 $link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title );
2531 echo $before, $link, $after;