给WordPress自带的搜索功能添加过滤只搜索文章的标题
如果想让 WordPress 自带的搜索功能只搜索文章标题,让搜索结果更加精确(其实WordPress 自带的搜索功能本来模糊查找就很弱),可以将下面的代码添加到当前主题functions.php中:
- // 只搜索文章标题
- function wpse_11826_search_by_title( $search, $wp_query ) {
- if ( ! empty( $search ) && ! empty( $wp_query->query_vars[‘search_terms’] ) ) {
- global $wpdb;
- $q = $wp_query->query_vars;
- $n = ! empty( $q[‘exact’] ) ? ” : ‘%’;
- $search = array();
- foreach ( ( array ) $q[‘search_terms’] as $term )
- $search[] = $wpdb->prepare( “$wpdb->posts.post_title LIKE %s”, $n . $wpdb->esc_like( $term ) . $n );
- if ( ! is_user_logged_in() )
- $search[] = “$wpdb->posts.post_password = ””;
- $search = ‘ AND ‘ . implode( ‘ AND ‘, $search );
- }
- return $search;
- }
- add_filter( ‘posts_search’, ‘wpse_11826_search_by_title’, 10, 2 );
源代码出自:http://wordpress.stackexchange.com/questions/11822/