WordPress删除除无效的定时作业cron

有时插件都卸载了，WordPress还会定时去执行这个作业，我爱水煮鱼写了一个定时作业，每天去检测所有定时作业，发现其中无效的定时作业后及时删除：

//删除没有用到的cron
add_action('monseng_remove_invild_crons', function(){
global $wp_filter;
$wp_crons = _get_cron_array();
foreach ($wp_crons as $timestamp => $wp_cron) {
foreach ($wp_cron as $hook => $dings) {
if(empty($wp_filter[$hook])){
foreach( $dings as $sig=>$data ) {
wp_unschedule_event($timestamp, $hook, $data['args']);
}
}
}
}
});
if(!wp_next_scheduled('monseng_remove_invild_crons')) {
wp_schedule_event( time(), 'daily', 'monseng_remove_invild_crons' );
}

#现在前往