WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 3 times in this file.
| Line | Code |
|---|---|
| 643 | $key = md5( serialize( compact(array_keys($defaults)) ) . serialize( $taxonomies ) . $filter_key ); |
| 644 | $last_changed = wp_cache_get('last_changed', 'terms'); |
| 645 | if ( !$last_changed ) { |
| 646 | $last_changed = time(); |
| 647 | wp_cache_set('last_changed', $last_changed, 'terms'); |
| 648 | } |
| 649 | $cache_key = "get_terms:$key:$last_changed"; |
| 650 | |
| 651 | if ( $cache = wp_cache_get( $cache_key, 'terms' ) ) { |
| 652 | $terms = apply_filters('get_terms', $cache, $taxonomies, $args); |
| 653 | return $terms; |
| 654 | } |
| 655 | |
| 656 | if ( 'count' == $orderby ) |
| 657 | $orderby = 'tt.count'; |
| 658 | else if ( 'name' == $orderby ) |
| 659 | $orderby = 't.name'; |
| 660 | else if ( 'slug' == $orderby ) |
| 661 | $orderby = 't.slug'; |
| Line | Code |
| 745 | $terms = $wpdb->get_results($query); |
| 746 | update_term_cache($terms); |
| 747 | } else if ( ('ids' == $fields) || ('names' == $fields) ) { |
| 748 | $terms = $wpdb->get_results($query); |
| 749 | } |
| 750 | |
| 751 | if ( empty($terms) ) { |
| 752 | $cache[ $key ] = array(); |
| 753 | wp_cache_set( 'get_terms', $cache, 'terms' ); |
| 754 | $terms = apply_filters('get_terms', array(), $taxonomies, $args); |
| 755 | return $terms; |
| 756 | } |
| 757 | |
| 758 | if ( $child_of ) { |
| 759 | $children = _get_term_hierarchy($taxonomies[0]); |
| 760 | if ( ! empty($children) ) |
| 761 | $terms = & _get_term_children($child_of, $terms, $taxonomies[0]); |
| 762 | } |
| 763 | |
| Line | Code |
| 789 | $terms = $_terms; |
| 790 | } elseif ( 'names' == $fields ) { |
| 791 | while ( $term = array_shift($terms) ) |
| 792 | $_terms[] = $term->name; |
| 793 | $terms = $_terms; |
| 794 | } |
| 795 | |
| 796 | wp_cache_add( $cache_key, $terms, 'terms' ); |
| 797 | |
| 798 | $terms = apply_filters('get_terms', $terms, $taxonomies, $args); |
| 799 | return $terms; |
| 800 | } |
| 801 | |
| 802 | /** |
| 803 | * Check if Term exists. |
| 804 | * |
| 805 | * Returns the index of a defined term, or 0 (false) if the term doesn't exist. |
| 806 | * |
| 807 | * @package WordPress |