在我的搜索结果中包含来自元数据库的内容，但经过研究，我只能找到两种解决方案：

How can I include meta box content when searching? 建议使用WP_Query 但您必须为每个键编写代码：

$aquarium_H = array(
    \'key\' => \'aquarium_H\', //name of your meta field
    \'value\' => $_GET["s"], // value from WordPress search bar. this is sanitized by WP
    \'type\' => \'numeric\', // string/numeric/whatever
    \'compare\' => \'<=\' // this can be "LIKE" or "NOT LIKE". most mySQL operators
);

$meta_query[] = $aquarium_H; // add to meta_query array

和问题How to make search include data from wp_postmeta? 建议采用类似的方法：

function me_search_query( $query ) {
  if ( $query->is_search ) {
    $meta_query_args = array(
      array(
        \'key\' => \'your_key\',
        \'value\' => $query->query_vars[\'s\'] = \'\',
        \'compare\' => \'LIKE\',
      ),
    );
    $query->set(\'meta_query\', $meta_query_args);
  };
}
add_filter( \'pre_get_posts\', \'me_search_query\');

问题是，如果您有大量密钥，那么代码就会膨胀。现在是否有更干净的方法来调用每个键或将所有内容都包含在4.8中？