[PHP] Workerman中的注册树模式

<?php
class Worker{

    protected static $_workers=array();
    public function __construct()
    {
        $this->workerId=spl_object_hash($this);
        static::$_workers[$this->workerId]=$this;
    }
    public static function runAll(){
        foreach (static::$_workers as $worker) {
            var_dump($worker);
        }
    }
}

new Worker();
new Worker();
Worker::runAll();