循环定时器和单次定时器

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2018/12/26
 * Time: 16:26
 */
//循环执行 定时器

swoole_timer_tick(2000,function ($timer_id){
   echo "执行 $timer_id \n";
});

//单次执行

swoole_timer_after(3000,function (){
    echo "3000 后执行 \n";
});

结果