$sample = false;
}
- if ( empty($post->ID) ) return 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')
+ 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');
- if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending')) ) {
+ $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 = '';
$author,
$post->post_name,
);
- $permalink = get_option('home') . str_replace($rewritecode, $rewritereplace, $permalink);
+ $permalink = home_url( str_replace($rewritecode, $rewritereplace, $permalink) );
$permalink = user_trailingslashit($permalink, 'single');
- return apply_filters('post_link', $permalink, $post, $leavename);
} else { // if they're not using the fancy permalink option
- $permalink = trailingslashit(get_option('home')) . '?p=' . $post->ID;
- return apply_filters('post_link', $permalink, $post, $leavename);
+ $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 = in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
+
+ $post_type = get_post_type_object($post->post_type);
+
+ if ( !empty($post_link) && ( ( isset($post->post_status) && !$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);
}
/**
* @param mixed $deprecated Not used.
* @return string
*/
-function post_permalink($post_id = 0, $deprecated = '') {
+function post_permalink( $post_id = 0, $deprecated = '' ) {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '1.3' );
+
return get_permalink($post_id);
}
$id = (int) $post->ID;
if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') )
- $link = get_option('home');
+ $link = home_url('/');
else
$link = _get_page_link( $id , $leavename, $sample );
- return apply_filters('page_link', $link, $id);
+ return apply_filters('page_link', $link, $id, $sample);
}
/**
else
$post = &get_post($id);
- $pagestruct = $wp_rewrite->get_page_permastruct();
+ $link = $wp_rewrite->get_page_permastruct();
- if ( '' != $pagestruct && ( ( isset($post->post_status) && 'draft' != $post->post_status ) || $sample ) ) {
- $link = get_page_uri($id);
- $link = ( $leavename ) ? $pagestruct : str_replace('%pagename%', $link, $pagestruct);
- $link = trailingslashit(get_option('home')) . "$link";
+ if ( '' != $link && ( ( isset($post->post_status) && 'draft' != $post->post_status && 'pending' != $post->post_status ) || $sample ) ) {
+ if ( ! $leavename )
+ $link = str_replace('%pagename%', get_page_uri($id), $link);
+ $link = home_url($link);
$link = user_trailingslashit($link, 'page');
} else {
- $link = trailingslashit(get_option('home')) . "?page_id=$id";
+ $link = home_url("?page_id=$id");
}
return apply_filters( '_get_page_link', $link, $id );
$link = false;
- if (! $id) {
+ if ( ! $id)
$id = (int) $post->ID;
- }
$object = get_post($id);
if ( $wp_rewrite->using_permalinks() && ($object->post_parent > 0) && ($object->post_parent != $id) ) {
$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)
+
+ if ( strpos($parentlink, '?') === false )
$link = user_trailingslashit( trailingslashit($parentlink) . $name );
}
- if (! $link ) {
- $link = trailingslashit(get_bloginfo('url')) . "?attachment_id=$id";
- }
+ if ( ! $link )
+ $link = home_url( "/?attachment_id=$id" );
return apply_filters('attachment_link', $link, $id);
}
function get_year_link($year) {
global $wp_rewrite;
if ( !$year )
- $year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
+ $year = gmdate('Y', current_time('timestamp'));
$yearlink = $wp_rewrite->get_year_permastruct();
if ( !empty($yearlink) ) {
$yearlink = str_replace('%year%', $year, $yearlink);
- return apply_filters('year_link', get_option('home') . user_trailingslashit($yearlink, 'year'), $year);
+ return apply_filters('year_link', home_url( user_trailingslashit($yearlink, 'year') ), $year);
} else {
- return apply_filters('year_link', trailingslashit(get_option('home')) . '?m=' . $year, $year);
+ return apply_filters('year_link', home_url('?m=' . $year), $year);
}
}
function get_month_link($year, $month) {
global $wp_rewrite;
if ( !$year )
- $year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
+ $year = gmdate('Y', current_time('timestamp'));
if ( !$month )
- $month = gmdate('m', time()+(get_option('gmt_offset') * 3600));
+ $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), $monthlink);
- return apply_filters('month_link', get_option('home') . user_trailingslashit($monthlink, 'month'), $year, $month);
+ return apply_filters('month_link', home_url( user_trailingslashit($monthlink, 'month') ), $year, $month);
} else {
- return apply_filters('month_link', trailingslashit(get_option('home')) . '?m=' . $year . zeroise($month, 2), $year, $month);
+ return apply_filters('month_link', home_url( '?m=' . $year . zeroise($month, 2) ), $year, $month);
}
}
function get_day_link($year, $month, $day) {
global $wp_rewrite;
if ( !$year )
- $year = gmdate('Y', time()+(get_option('gmt_offset') * 3600));
+ $year = gmdate('Y', current_time('timestamp'));
if ( !$month )
- $month = gmdate('m', time()+(get_option('gmt_offset') * 3600));
+ $month = gmdate('m', current_time('timestamp'));
if ( !$day )
- $day = gmdate('j', time()+(get_option('gmt_offset') * 3600));
+ $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), $daylink);
- return apply_filters('day_link', get_option('home') . user_trailingslashit($daylink, 'day'), $year, $month, $day);
+ return apply_filters('day_link', home_url( user_trailingslashit($daylink, 'day') ), $year, $month, $day);
} else {
- return apply_filters('day_link', trailingslashit(get_option('home')) . '?m=' . $year . zeroise($month, 2) . zeroise($day, 2), $year, $month, $day);
+ 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.
*
$permalink = str_replace('%feed%', $feed, $permalink);
$permalink = preg_replace('#/+#', '/', "/$permalink");
- $output = get_option('home') . user_trailingslashit($permalink, 'feed');
+ $output = home_url( user_trailingslashit($permalink, 'feed') );
} else {
if ( empty($feed) )
$feed = get_default_feed();
if ( false !== strpos($feed, 'comments_') )
$feed = str_replace('comments_', 'comments-', $feed);
- $output = trailingslashit(get_option('home')) . "?feed={$feed}";
+ $output = home_url("?feed={$feed}");
}
return apply_filters('feed_link', $output, $feed);
$feed = get_default_feed();
if ( '' != get_option('permalink_structure') ) {
- $url = trailingslashit( get_permalink($post_id) ) . 'feed';
+ 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 )
- $url = trailingslashit(get_option('home')) . "?feed=$feed&page_id=$post_id";
+ $url = home_url("?feed=$feed&page_id=$post_id");
else
- $url = trailingslashit(get_option('home')) . "?feed=$feed&p=$post_id";
+ $url = home_url("?feed=$feed&p=$post_id");
}
return apply_filters('post_comments_feed_link', $url);
$feed = get_default_feed();
if ( '' == $permalink_structure ) {
- $link = trailingslashit(get_option('home')) . "?feed=$feed&author=" . $author_id;
+ $link = home_url("?feed=$feed&author=" . $author_id);
} else {
$link = get_author_posts_url($author_id);
if ( $feed == get_default_feed() )
* @return string Link to the feed for the category specified by $cat_id.
*/
function get_category_feed_link($cat_id, $feed = '') {
- $cat_id = (int) $cat_id;
+ return get_term_feed_link($cat_id, 'category', $feed);
+}
+
+/**
+ * Retrieve the feed link for a taxonomy.
+ *
+ * Returns a link to the feed for all post 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 taxonomy specified by $term_id and $taxonomy.
+*/
+function get_term_feed_link( $term_id, $taxonomy = 'category', $feed = '' ) {
+ global $wp_rewrite;
+
+ $term_id = ( int ) $term_id;
- $category = get_category($cat_id);
+ $term = get_term( $term_id, $taxonomy );
- if ( empty($category) || is_wp_error($category) )
+ if ( empty( $term ) || is_wp_error( $term ) )
return false;
- if ( empty($feed) )
+ if ( empty( $feed ) )
$feed = get_default_feed();
- $permalink_structure = get_option('permalink_structure');
+ $permalink_structure = get_option( 'permalink_structure' );
if ( '' == $permalink_structure ) {
- $link = trailingslashit(get_option('home')) . "?feed=$feed&cat=" . $cat_id;
+ 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 {
- $link = get_category_link($cat_id);
- if( $feed == get_default_feed() )
+ $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');
+ $link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' );
}
- $link = apply_filters('category_feed_link', $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 $link;
}
* @return string
*/
function get_tag_feed_link($tag_id, $feed = '') {
- $tag_id = (int) $tag_id;
-
- $tag = get_tag($tag_id);
-
- if ( empty($tag) || is_wp_error($tag) )
- return false;
-
- $permalink_structure = get_option('permalink_structure');
-
- if ( empty($feed) )
- $feed = get_default_feed();
-
- if ( '' == $permalink_structure ) {
- $link = trailingslashit(get_option('home')) . "?feed=$feed&tag=" . $tag->slug;
- } else {
- $link = get_tag_link($tag->term_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('tag_feed_link', $link, $feed);
-
- return $link;
+ return get_term_feed_link($tag_id, 'post_tag', $feed);
}
/**
* @return string
*/
function get_edit_tag_link( $tag_id = 0, $taxonomy = 'post_tag' ) {
- $tag = get_term($tag_id, $taxonomy);
-
- if ( !current_user_can('manage_categories') )
+ global $post_type;
+ $tax = get_taxonomy($taxonomy);
+ if ( !current_user_can($tax->cap->edit_terms) )
return;
- $location = admin_url('edit-tags.php?action=edit&taxonomy=' . $taxonomy . '&tag_ID=' . $tag->term_id);
+ $tag = get_term($tag_id, $taxonomy);
+
+ $location = admin_url('edit-tags.php?action=edit&taxonomy=' . $taxonomy . '&' . (!empty($post_type) ? 'post_type=' . $post_type .'&' : '') .'tag_ID=' . $tag->term_id);
return apply_filters( 'get_edit_tag_link', $location );
}
* @return string|null HTML content, if $echo is set to false.
*/
function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
- $tag = get_term($tag, 'post_tag');
-
- if ( !current_user_can('manage_categories') )
+ $tax = get_taxonomy('post_tag');
+ if ( !current_user_can($tax->cap->edit_terms) )
return;
+ $tag = get_term($tag, 'post_tag');
+
if ( empty($link) )
$link = __('Edit This');
- $link = '<a href="' . get_edit_tag_link( $tag->term_id ) . '" title="' . __( 'Edit tag' ) . '">' . $link . '</a>';
+ $link = '<a href="' . get_edit_tag_link( $tag->term_id ) . '" title="' . __( 'Edit Tag' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_tag_link', $link, $tag->term_id ) . $after;
}
+/**
+* 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, $search );
+}
+
/**
* Retrieve the permalink for the feed of the search results.
*
* @return string
*/
function get_search_feed_link($search_query = '', $feed = '') {
- if ( empty($search_query) )
- $search = esc_attr(get_search_query());
- else
- $search = esc_attr(stripslashes($search_query));
+ global $wp_rewrite;
+ $link = get_search_link($search_query);
if ( empty($feed) )
$feed = get_default_feed();
- $link = trailingslashit(get_option('home')) . "?s=$search&feed=$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);
+ $link = apply_filters('search_feed_link', $link, $feed, 'posts');
return $link;
}
* @return string
*/
function get_search_comments_feed_link($search_query = '', $feed = '') {
- if ( empty($search_query) )
- $search = esc_attr(get_search_query());
- else
- $search = esc_attr(stripslashes($search_query));
+ global $wp_rewrite;
if ( empty($feed) )
$feed = get_default_feed();
- $link = trailingslashit(get_option('home')) . "?s=$search&feed=comments-$feed";
+ $link = get_search_feed_link($search_query, $feed);
- $link = apply_filters('search_feed_link', $link);
+ $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;
}
return;
if ( 'display' == $context )
- $action = 'action=edit&';
+ $action = '&action=edit';
else
- $action = 'action=edit&';
+ $action = '&action=edit';
- switch ( $post->post_type ) :
- case 'page' :
- if ( !current_user_can( 'edit_page', $post->ID ) )
- return;
- $file = 'page';
- $var = 'post';
- break;
- case 'attachment' :
- if ( !current_user_can( 'edit_post', $post->ID ) )
- return;
- $file = 'media';
- $var = 'attachment_id';
- break;
- case 'revision' :
- if ( !current_user_can( 'edit_post', $post->ID ) )
- return;
- $file = 'revision';
- $var = 'revision';
- $action = '';
- break;
- default :
- if ( !current_user_can( 'edit_post', $post->ID ) )
- return;
- $file = 'post';
- $var = 'post';
- break;
- endswitch;
+ $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, $post->ID ) )
+ return;
- return apply_filters( 'get_edit_post_link', admin_url("$file.php?{$action}$var=$post->ID"), $post->ID, $context );
+ return apply_filters( 'get_edit_post_link', admin_url( sprintf($post_type_object->_edit_link . $action, $post->ID) ), $post->ID, $context );
}
/**
* @param string $after Optional. Display after edit link.
* @param int $id Optional. Post ID.
*/
-function edit_post_link( $link = 'Edit This', $before = '', $after = '', $id = 0 ) {
+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;
- $link = '<a class="post-edit-link" href="' . $url . '" title="' . esc_attr( __( 'Edit post' ) ) . '">' . $link . '</a>';
+ 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( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '3.0.0' );
+
+ if ( !$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.
*
* @param string $after Optional. Display after edit link.
* @return string|null HTML content, if $echo is set to false.
*/
-function edit_comment_link( $link = 'Edit This', $before = '', $after = '' ) {
+function edit_comment_link( $link = null, $before = '', $after = '' ) {
global $comment, $post;
if ( $post->post_type == 'page' ) {
return;
}
+ if ( null === $link )
+ $link = __('Edit This');
+
$link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . __( 'Edit comment' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after;
}
if ( empty($link) )
$link = __('Edit This');
- $link = '<a href="' . get_edit_bookmark_link( $link ) . '" title="' . __( 'Edit link' ) . '">' . $link . '</a>';
+ $link = '<a href="' . get_edit_bookmark_link( $link ) . '" title="' . __( 'Edit Link' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
}
function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) {
global $post, $wpdb;
- if ( empty($post) || !is_single() || is_attachment() )
+ if ( empty( $post ) )
return null;
$current_post_date = $post->post_date;
$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', 'fields=ids');
+ $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids'));
$join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
}
$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 = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date), $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 $sort";
* @return string
*/
function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $previous = true) {
- if ( $previous && is_attachment() )
+ 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);
$title = str_replace('%title', $post->post_title, $title);
$title = str_replace('%date', $date, $title);
- $title = apply_filters('the_title', $title, $post);
+ $title = apply_filters('the_title', $title, $post->ID);
$link = $previous ? "<link rel='prev' title='" : "<link rel='next' title='";
$link .= esc_attr( $title );
echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false);
}
+/**
+ * Display relational links for the posts adjacent to the current post for single post pages.
+ *
+ * This is meant to be attached to actions like 'wp_head'. Do not call this directly in plugins or theme templates.
+ * @since 3.0.0
+ *
+ */
+function adjacent_posts_rel_link_wp_head() {
+ if ( !is_singular() || is_attachment() )
+ return;
+ adjacent_posts_rel_link();
+}
+
/**
* Display relational link for the next post adjacent to the current post.
*
* @return object
*/
function get_boundary_post($in_same_cat = false, $excluded_categories = '', $start = true) {
- global $post, $wpdb;
+ global $post;
if ( empty($post) || !is_single() || is_attachment() )
return null;
$excluded_categories = array();
if ( !empty($in_same_cat) || !empty($excluded_categories) ) {
if ( !empty($in_same_cat) ) {
- $cat_array = wp_get_object_terms($post->ID, 'category', 'fields=ids');
+ $cat_array = wp_get_object_terms($post->ID, 'category', array('fields' => 'ids'));
}
if ( !empty($excluded_categories) ) {
$order = $start ? 'ASC' : 'DESC';
- return get_posts( array('numberposts' => 1, 'order' => $order, 'orderby' => 'ID', 'category' => $categories) );
+ return get_posts( array('numberposts' => 1, 'no_found_rows' => true, 'order' => $order, 'orderby' => 'ID', 'category' => $categories) );
}
/**
*/
function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) {
$posts = get_boundary_post($in_same_cat,$excluded_categories,$start);
+ // If there is no post stop.
+ if ( empty($posts) )
+ return;
+
// Even though we limited get_posts to return only 1 item it still returns an array of objects.
$post = $posts[0];
- if ( empty($post) )
- return;
-
- if ( empty($post->post_title) )
- $post->post_title = $start ? __('First Post') : __('Last Post');
+ if ( empty($post->post_title) )
+ $post->post_title = $start ? __('First Post') : __('Last 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);
+ $title = apply_filters('the_title', $title, $post->ID);
$link = $start ? "<link rel='start' title='" : "<link rel='end' title='";
$link .= esc_attr($title);
* @return string
*/
function get_index_rel_link() {
- $link = "<link rel='index' title='" . esc_attr(get_bloginfo('name')) . "' href='" . get_bloginfo('siteurl') . "' />\n";
+ $link = "<link rel='index' title='" . esc_attr( get_bloginfo( 'name', 'display' ) ) . "' href='" . esc_url( user_trailingslashit( get_bloginfo( 'url', 'display' ) ) ) . "' />\n";
return apply_filters( "index_rel_link", $link );
}
$title = str_replace('%title', $post->post_title, $title);
$title = str_replace('%date', $date, $title);
- $title = apply_filters('the_title', $title, $post);
+ $title = apply_filters('the_title', $title, $post->ID);
$link = "<link rel='up' title='";
$link .= esc_attr( $title );
if ( empty($post->post_title) )
$title = $previous ? __('Previous Post') : __('Next Post');
- $title = apply_filters('the_title', $title, $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).'">';
+ $string = '<a href="'.get_permalink($post).'" rel="'.$rel.'">';
$link = str_replace('%title', $title, $link);
$link = str_replace('%date', $date, $link);
$link = $string . $link . '</a>';
$request = remove_query_arg( 'paged' );
- $home_root = parse_url(get_option('home'));
+ $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('|^/+|', '', $request);
if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
- $base = trailingslashit( get_bloginfo( 'home' ) );
+ $base = trailingslashit( get_bloginfo( 'url' ) );
if ( $pagenum > 1 ) {
$result = add_query_arg( 'paged', $pagenum, $base . $request );
function get_next_posts_link( $label = 'Next Page »', $max_page = 0 ) {
global $paged, $wp_query;
- if ( !$max_page ) {
+ if ( !$max_page )
$max_page = $wp_query->max_num_pages;
- }
if ( !$paged )
$paged = 1;
if ( !is_single() && ( empty($paged) || $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};)/', '&$1', $label) .'</a>';
+ return '<a href="' . next_posts( $max_page, false ) . "\" $attr>" . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) . '</a>';
}
}
if ( $max_num_pages > 1 ) {
$return = get_previous_posts_link($args['prelabel']);
- $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $args['sep']);
+ $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $args['sep']);
$return .= get_next_posts_link($args['nxtlabel']);
}
}
if ( empty($label) )
$label = __('Newer Comments »');
- return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+ 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', $label) .'</a>';
}
/**
if ( empty($label) )
$label = __('« Older Comments');
- return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+ return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&$1', $label) .'</a>';
}
/**
* @return string Markup for pagination links.
*/
function paginate_comments_links($args = array()) {
- global $wp_query, $wp_rewrite;
+ global $wp_rewrite;
if ( !is_singular() || !get_option('page_comments') )
return;
f='" . admin_url('press-this.php') . "',
l=d.location,
e=encodeURIComponent,
- g=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=2';
- function a(){
- if(!w.open(g,'t','toolbar=0,resizable=0,scrollbars=1,status=1,width=720,height=570')){
- l.href=g;
- }
- }";
- if (strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== false)
- $link .= 'setTimeout(a,0);';
- else
- $link .= 'a();';
-
- $link .= "void(0);";
+ u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4';
+ a=function(){if(!w.open(u,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;};
+ if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a();
+ void(0)";
$link = str_replace(array("\r", "\n", "\t"), '', $link);
}
/**
- * Retrieve the site url.
+ * Retrieve the home url for the current site.
+ *
+ * Returns the 'home' option with the appropriate protocol, 'https' if
+ * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
+ * overridden.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @uses get_home_url()
+ *
+ * @param string $path (optional) Path relative to the home url.
+ * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
+ * @return string Home url link with optional path appended.
+*/
+function home_url( $path = '', $scheme = null ) {
+ return get_home_url(null, $path, $scheme);
+}
+
+/**
+ * Retrieve the home url for a given site.
+ *
+ * Returns the 'home' option with the appropriate protocol, 'https' if
+ * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
+ * overridden.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @param int $blog_id (optional) Blog ID. Defaults to current blog.
+ * @param string $path (optional) Path relative to the home url.
+ * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
+ * @return string Home url link with optional path appended.
+*/
+function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
+ $orig_scheme = $scheme;
+
+ if ( !in_array( $scheme, array( 'http', 'https' ) ) )
+ $scheme = is_ssl() && !is_admin() ? 'https' : 'http';
+
+ if ( empty( $blog_id ) || !is_multisite() )
+ $home = get_option( 'home' );
+ else
+ $home = get_blog_option( $blog_id, 'home' );
+
+ $url = str_replace( 'http://', "$scheme://", $home );
+
+ if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false )
+ $url .= '/' . ltrim( $path, '/' );
+
+ return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id );
+}
+
+/**
+ * Retrieve the site url for the current site.
*
* Returns the 'site_url' option with the appropriate protocol, 'https' if
* is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
* @package WordPress
* @since 2.6.0
*
+ * @uses get_site_url()
+ *
+ * @param string $path Optional. Path relative to the site url.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @return string Site url link with optional path appended.
+*/
+function site_url( $path = '', $scheme = null ) {
+ return get_site_url(null, $path, $scheme);
+}
+
+/**
+ * Retrieve the site url for a given site.
+ *
+ * Returns the 'site_url' option with the appropriate protocol, 'https' if
+ * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
+ * overridden.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @param int $blog_id (optional) Blog ID. Defaults to current blog.
* @param string $path Optional. Path relative to the site url.
* @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
* @return string Site url link with optional path appended.
*/
-function site_url($path = '', $scheme = null) {
+function get_site_url( $blog_id = null, $path = '', $scheme = null ) {
// should the list of allowed schemes be maintained elsewhere?
$orig_scheme = $scheme;
- if ( !in_array($scheme, array('http', 'https')) ) {
+ if ( !in_array( $scheme, array( 'http', 'https' ) ) ) {
if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) )
$scheme = 'https';
- elseif ( ('login' == $scheme) && ( force_ssl_admin() ) )
+ elseif ( ( 'login' == $scheme ) && force_ssl_admin() )
$scheme = 'https';
- elseif ( ('admin' == $scheme) && force_ssl_admin() )
+ elseif ( ( 'admin' == $scheme ) && force_ssl_admin() )
$scheme = 'https';
else
$scheme = ( is_ssl() ? 'https' : 'http' );
}
- $url = str_replace( 'http://', "{$scheme}://", get_option('siteurl') );
+ if ( empty( $blog_id ) || !is_multisite() )
+ $url = get_option( 'siteurl' );
+ else
+ $url = get_blog_option( $blog_id, 'siteurl' );
- if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
- $url .= '/' . ltrim($path, '/');
+ $url = str_replace( 'http://', "{$scheme}://", $url );
- return apply_filters('site_url', $url, $path, $orig_scheme);
+ if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false )
+ $url .= '/' . ltrim( $path, '/' );
+
+ return apply_filters( 'site_url', $url, $path, $orig_scheme, $blog_id );
}
/**
- * Retrieve the url to the admin area.
+ * Retrieve the url to the admin area for the current site.
*
* @package WordPress
* @since 2.6.0
*
* @param string $path Optional path relative to the admin url
+ * @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.
+ * @return string Admin url link with optional path appended
+*/
+function admin_url( $path = '', $scheme = 'admin' ) {
+ return get_admin_url(null, $path, $scheme);
+}
+
+/**
+ * Retrieve the url to the admin area for a given site.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @param int $blog_id (optional) Blog ID. Defaults to current blog.
+ * @param string $path Optional path relative to the admin url
+ * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
* @return string Admin url link with optional path appended
*/
-function admin_url($path = '') {
- $url = site_url('wp-admin/', 'admin');
+function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) {
+ $url = get_site_url($blog_id, 'wp-admin/', $scheme);
if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
$url .= ltrim($path, '/');
- return apply_filters('admin_url', $url, $path);
+ return apply_filters('admin_url', $url, $path, $blog_id);
}
/**
* @return string Content url link with optional path appended.
*/
function content_url($path = '') {
- $scheme = ( is_ssl() ? 'https' : 'http' );
$url = WP_CONTENT_URL;
- if ( 0 === strpos($url, 'http') ) {
- if ( is_ssl() )
- $url = str_replace( 'http://', "{$scheme}://", $url );
- }
+ if ( 0 === strpos($url, 'http') && is_ssl() )
+ $url = str_replace( 'http://', 'https://', $url );
if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
$url .= '/' . ltrim($path, '/');
* @return string Plugins url link with optional path appended.
*/
function plugins_url($path = '', $plugin = '') {
- $scheme = ( is_ssl() ? 'https' : 'http' );
- if ( $plugin !== '' && preg_match('#^' . preg_quote(WPMU_PLUGIN_DIR . DIRECTORY_SEPARATOR, '#') . '#', $plugin) ) {
+ $mu_plugin_dir = WPMU_PLUGIN_DIR;
+ foreach ( array('path', 'plugin', 'mu_plugin_dir') as $var ) {
+ $$var = str_replace('\\' ,'/', $$var); // sanitize for Win32 installs
+ $$var = preg_replace('|/+|', '/', $$var);
+ }
+
+ if ( !empty($plugin) && 0 === strpos($plugin, $mu_plugin_dir) )
$url = WPMU_PLUGIN_URL;
- } else {
+ else
$url = WP_PLUGIN_URL;
- }
- if ( 0 === strpos($url, 'http') ) {
- if ( is_ssl() )
- $url = str_replace( 'http://', "{$scheme}://", $url );
- }
+ if ( 0 === strpos($url, 'http') && is_ssl() )
+ $url = str_replace( 'http://', 'https://', $url );
if ( !empty($plugin) && is_string($plugin) ) {
$folder = dirname(plugin_basename($plugin));
- if ('.' != $folder)
+ if ( '.' != $folder )
$url .= '/' . ltrim($folder, '/');
}
return apply_filters('plugins_url', $url, $path, $plugin);
}
+/**
+ * Retrieve the site url for the current network.
+ *
+ * Returns the site url with the appropriate protocol, 'https' if
+ * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
+ * overridden.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @param string $path Optional. Path relative to the site url.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @return string Site url link with optional path appended.
+*/
+function network_site_url( $path = '', $scheme = null ) {
+ global $current_site;
+
+ if ( !is_multisite() )
+ return site_url($path, $scheme);
+
+ $orig_scheme = $scheme;
+ if ( !in_array($scheme, array('http', 'https')) ) {
+ if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) )
+ $scheme = 'https';
+ elseif ( ('login' == $scheme) && ( force_ssl_admin() ) )
+ $scheme = 'https';
+ elseif ( ('admin' == $scheme) && force_ssl_admin() )
+ $scheme = 'https';
+ else
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+ }
+
+ $url = 'http://' . $current_site->domain . $current_site->path;
+
+ $url = str_replace( 'http://', "{$scheme}://", $url );
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= ltrim($path, '/');
+
+ return apply_filters('network_site_url', $url, $path, $orig_scheme);
+}
+
+/**
+ * Retrieve the home url for the current network.
+ *
+ * Returns the home url with the appropriate protocol, 'https' if
+ * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
+ * overridden.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @param string $path (optional) Path relative to the home url.
+ * @param string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
+ * @return string Home url link with optional path appended.
+*/
+function network_home_url( $path = '', $scheme = null ) {
+ global $current_site;
+
+ if ( !is_multisite() )
+ return home_url($path, $scheme);
+
+ $orig_scheme = $scheme;
+
+ if ( !in_array($scheme, array('http', 'https')) )
+ $scheme = is_ssl() && !is_admin() ? 'https' : 'http';
+
+ $url = 'http://' . $current_site->domain . $current_site->path;
+
+ $url = str_replace( 'http://', "$scheme://", $url );
+
+ if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false )
+ $url .= ltrim( $path, '/' );
+
+ return apply_filters( 'network_home_url', $url, $path, $orig_scheme);
+}
+
+/**
+ * Retrieve the url to the admin area for the network.
+ *
+ * @package WordPress
+ * @since 3.0.0
+ *
+ * @param string $path Optional path relative to the admin url
+ * @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.
+ * @return string Admin url link with optional path appended
+*/
+function network_admin_url( $path = '', $scheme = 'admin' ) {
+ $url = network_site_url('wp-admin/', $scheme);
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= ltrim($path, '/');
+
+ return apply_filters('network_admin_url', $url, $path);
+}
+
+/**
+ * Output rel=canonical for singular queries
+ *
+ * @package WordPress
+ * @since 2.9.0
+*/
+function rel_canonical() {
+ if ( !is_singular() )
+ return;
+
+ global $wp_the_query;
+ if ( !$id = $wp_the_query->get_queried_object_id() )
+ return;
+
+ $link = get_permalink( $id );
+ echo "<link rel='canonical' href='$link' />\n";
+}
+
+/**
+ * Return a shortlink for a post, page, attachment, or blog.
+ *
+ * This function exists to provide a shortlink tag that all themes and plugins can target. A plugin must hook in to
+ * provide the actual shortlinks. Default shortlink support is limited to providing ?p= style links for posts.
+ * Plugins can short circuit this function via the pre_get_shortlink filter or filter the output
+ * via the get_shortlink filter.
+ *
+ * @since 3.0.0.
+ *
+ * @param int $id A post or blog id. Default is 0, which means the current post or blog.
+ * @param string $contex 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'.
+ * @param bool $allow_slugs Whether to allow post slugs in the shortlink. It is up to the plugin how and whether to honor this.
+ * @return string A shortlink or an empty string if no shortlink exists for the requested resource or if shortlinks are not enabled.
+ */
+function wp_get_shortlink($id = 0, $context = 'post', $allow_slugs = true) {
+ // Allow plugins to short-circuit this function.
+ $shortlink = apply_filters('pre_get_shortlink', false, $id, $context, $allow_slugs);
+ if ( false !== $shortlink )
+ return $shortlink;
+
+ global $wp_query;
+ $post_id = 0;
+ if ( 'query' == $context && is_single() ) {
+ $post_id = $wp_query->get_queried_object_id();
+ } elseif ( 'post' == $context ) {
+ $post = get_post($id);
+ $post_id = $post->ID;
+ }
+
+ $shortlink = '';
+
+ // Return p= link for posts.
+ if ( !empty($post_id) && '' != get_option('permalink_structure') ) {
+ $post = get_post($post_id);
+ if ( isset($post->post_type) && 'post' == $post->post_type )
+ $shortlink = home_url('?p=' . $post->ID);
+ }
+
+ return apply_filters('get_shortlink', $shortlink, $id, $context, $allow_slugs);
+}
+
+/**
+ * Inject rel=sortlink into head if a shortlink is defined for the current page.
+ *
+ * Attached to the wp_head action.
+ *
+ * @since 3.0.0
+ *
+ * @uses wp_get_shortlink()
+ */
+function wp_shortlink_wp_head() {
+ $shortlink = wp_get_shortlink( 0, 'query' );
+
+ if ( empty( $shortlink ) )
+ return;
+
+ echo "<link rel='shortlink' href='" . esc_url_raw( $shortlink ) . "' />\n";
+}
+
+/**
+ * Send a Link: rel=shortlink header if a shortlink is defined for the current page.
+ *
+ * Attached to the wp action.
+ *
+ * @since 3.0.0
+ *
+ * @uses wp_get_shortlink()
+ */
+function wp_shortlink_header() {
+ if ( headers_sent() )
+ return;
+
+ $shortlink = wp_get_shortlink(0, 'query');
+
+ if ( empty($shortlink) )
+ return;
+
+ header('Link: <' . $shortlink . '>; rel=shortlink', false);
+}
+
+/**
+ * Display the Short Link for a Post
+ *
+ * Must be called from inside "The Loop"
+ *
+ * Call like the_shortlink(__('Shortlinkage FTW'))
+ *
+ * @since 3.0.0
+ *
+ * @param string $text Optional The link text or HTML to be displayed. Defaults to 'This is the short link.'
+ * @param string $title Optional The tooltip for the link. Must be sanitized. Defaults to the sanitized post title.
+ * @param string $before Optional HTML to display before the link.
+ * @param string $before Optional HTML to display after the link.
+ */
+function the_shortlink( $text = '', $title = '', $before = '', $after = '' ) {
+ global $post;
+
+ if ( empty( $text ) )
+ $text = __('This is the short link.');
+
+ if ( empty( $title ) )
+ $title = the_title_attribute( array( 'echo' => FALSE ) );
+
+ $shortlink = wp_get_shortlink( $post->ID );
+
+ if ( !empty( $shortlink ) ) {
+ $link = '<a rel="shortlink" href="' . esc_url( $shortlink ) . '" title="' . $title . '">' . $text . '</a>';
+ $link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title );
+ echo $before, $link, $after;
+ }
+}
+
?>