course/process/Task.php

<?php

namespace process;

use app\common\service\SendMsgCronJobService;
use Workerman\Crontab\Crontab;

class Task
{
    public function onWorkerStart()
    {

        // 每天的7点50执行，注意这里省略了秒位
        new Crontab('50 7 * * *', function(){
            //上课前一天提醒教师
            (new SendMsgCronJobService())->classBeginMsgToTeacher();
        });

    }
}