WordPress教程 – 修改搜索结果仅显示文章标题不包含关键词的文章内容

如果你想让你的wordpress搜索结果只显示包含搜索词标题的文章不显示包含搜索词文章内容的文章你可以按照本文操作，好处是搜索结果更加精准，速度也更加的快！

请将以下代码添加到你当前使用主题的functions.php文件尾部即可

// 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 );