首先，确保实际上有15分钟的可用时间间隔。

// create the cron scheduled interval to be used
add_filter(\'cron_schedules\',\'ex11_cron_schedules\');
function ex11_cron_schedules($schedules){
    if(!isset($schedules["15min"])){
        $schedules["15min"] = array(
            \'interval\' => 15*60,
            \'display\' => __(\'Once every 15 minutes\'));
    }
    return $schedules;
}

然后创建自定义WP\\U查询循环，以获取需要比较的所有记录，并归档不再需要的记录（副本）：

// I haven\'t tested this yet. You might need to fine tune it.
// You might also need to tune the query statements to suit the Track CPT
function wpse_archive_duplicate_tracks(){
    $args = array( \'post_type\'=>\'track\',\'pust_status\'=>\'publish\');
    $tracks = get_posts($args);
    $tracks_to_keep = array();

    foreach($tracks as $track){
        if (array_key_exists($track->artist . \'~\' .$track->post_title, $tracks_to_keep)){                
            $toUpdate = array(
                \'ID\' = $track->ID,
                \'post_status\' = \'archive\', // change to \'trash\' to delete
               );
            wp_update_post($toUpdate);
    } else {
         $tracks_to_keep[$track->artist . \'~\' .$track->post_title] = $track;
    }
}

最后，您需要安排归档功能：

wp_schedule_event(time(), \'15min\', \'wpse_archive_duplicate_tracks\');     

Parting thought: 您可能还想考虑在已检查的曲目中添加meta\\u数据字段，这样就不必每次都检查它们。但是如果副本可以随时返回，这可能不适合您的情况。

祝你好运