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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 33 | |
| 34 | $defaults = array('orderby' => 'name', 'order' => 'ASC', 'limit' => -1, 'category' => '', |
| 35 | 'category_name' => '', 'hide_invisible' => 1, 'show_updated' => 0, 'include' => '', 'exclude' => ''); |
| 36 | $r = array_merge($defaults, $r); |
| 37 | extract($r); |
| 38 | |
| 39 | $key = md5( serialize( $r ) ); |
| 40 | if ( $cache = wp_cache_get( 'get_bookmarks', 'bookmark' ) ) |
| 41 | if ( isset( $cache[ $key ] ) ) |
| 42 | return apply_filters('get_bookmarks', $cache[ $key ], $r ); |
| 43 | |
| 44 | $inclusions = ''; |
| 45 | if ( !empty($include) ) { |
| 46 | $exclude = ''; //ignore exclude, category, and category_name params if using include |
| 47 | $category = ''; |
| 48 | $category_name = ''; |
| 49 | $inclinks = preg_split('/[\s,]+/',$include); |
| 50 | if ( count($inclinks) ) { |
| 51 | foreach ( $inclinks as $inclink ) { |
| Line | Code |
| 132 | $query .= " ORDER BY $orderby $order"; |
| 133 | if ($limit != -1) |
| 134 | $query .= " LIMIT $limit"; |
| 135 | |
| 136 | $results = $wpdb->get_results($query); |
| 137 | |
| 138 | $cache[ $key ] = $results; |
| 139 | wp_cache_add( 'get_bookmarks', $cache, 'bookmark' ); |
| 140 | |
| 141 | return apply_filters('get_bookmarks', $results, $r); |
| 142 | } |
| 143 | |
| 144 | function delete_get_bookmark_cache() { |
| 145 | wp_cache_delete( 'get_bookmarks', 'bookmark' ); |
| 146 | } |
| 147 | add_action( 'add_link', 'delete_get_bookmark_cache' ); |
| 148 | add_action( 'edit_link', 'delete_get_bookmark_cache' ); |
| 149 | add_action( 'delete_link', 'delete_get_bookmark_cache' ); |
| 150 | |