问使用带有多个数组的meta_query使用acf关系字段筛选自定义post类型存档页

EN

 // functions.php
   $meta_query = $query->get('meta_query');

        // allow the url to alter the query
        if( !empty($_GET['keywords']) OR !empty($_GET['project_ref']) )
        {
          $keywords = explode(',', $_GET['keywords']);
          $projects = $_GET['project_ref'];

          // Add our meta query to the original meta queries
          $meta_query[] = array(
            'relation' => 'OR',
            array(
              'key'   => 'keywords',
              'value'   => $keywords,
              'compare' => 'LIKE'
            ),
            array(
              'key' => 'project_ref',
              'value' => $projects,
              'compare' => 'LIKE'
            )
          );
        }