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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.
| Line | Code |
|---|---|
| 990 | break; |
| 991 | case 'names': |
| 992 | $selects = array('t.term_id', 'tt.parent', 'tt.count', 't.name'); |
| 993 | break; |
| 994 | case 'count': |
| 995 | $orderby = ''; |
| 996 | $order = ''; |
| 997 | $selects = array('COUNT(*)'); |
| 998 | } |
| 999 | $select_this = implode(', ', apply_filters( 'get_terms_fields', $selects, $args )); |
| 1000 | |
| 1001 | $query = "SELECT $select_this FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE tt.taxonomy IN ($in_taxonomies) $where $orderby $order $limit"; |
| 1002 | |
| 1003 | if ( 'count' == $fields ) { |
| 1004 | $term_count = $wpdb->get_var($query); |
| 1005 | return $term_count; |
| 1006 | } |
| 1007 | |
| 1008 | $terms = $wpdb->get_results($query); |