add_filter('posts_orderby_request', 'wpjam_search_orderby_filter'); function wpjam_search_orderby_filter($orderby = ''){ if(is_search()){ global $wpdb; $keyword = $wpdb->prepare($_REQUEST['s']); return "((CASE WHEN {$wpdb->posts}.post_title LIKE '%{$keyword}%' THEN 2 ELSE 0 END) + (CASE WHEN {$wpdb->posts}.post_content LIKE '%{$keyword}%' THEN 1 ELSE 0 END)) DESC, {$wpdb->posts}.post_modified DESC, {$wpdb->posts}.ID ASC"; }else{ return $orderby; } }
提示错误:Warning: Missing argument 2 for wpdb::prepare(),
$keyword = $wpdb->prepare($_REQUEST['s']);
就是这一行。
胡子哥哥