让 WordPress 只搜索文章的标题
主题文件 functions.php 中加入代码:
/** * 让 WordPress 只搜索文章的标题 */ add_filter( 'posts_search', '_search_by_title', 10, 2 ); function _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; }
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