Using swoole to extend php websocket example

<?php
define(&#39;DEBUG&#39;, &#39;on&#39;);
define("WEBPATH", str_replace("\\","/", __DIR__));
require __DIR__ . &#39;/../libs/lib_config.php&#39;;
class WebSocket extends Swoole\Network\Protocol\WebSocket
{
    /**
     * 下线时，通知所有人
     */
    function onClose($serv, $client_id, $from_id)
    {
        //将下线消息发送给所有人
        //$this->log("onOffline: " . $client_id);
        //$this->broadcast($client_id, "onOffline: " . $client_id);
        parent::onClose($serv, $client_id, $from_id);
    }
    /**
     * 接收到消息时
     * @see WSProtocol::onMessage()
     */
    function onMessage($client_id, $ws)
    {
        $this->log("onMessage: ".$client_id.&#39; = &#39;.$ws[&#39;message&#39;]);
        $this->send($client_id, "Server: ".$ws[&#39;message&#39;]);
  //$this->broadcast($client_id, $ws[&#39;message&#39;]);
    }
    function broadcast($client_id, $msg)
    {
        foreach ($this->connections as $clid => $info)
        {
            if ($client_id != $clid)
            {
                $this->send($clid, $msg);
            }
        }
    }
}

$AppSvr = new WebSocket();
$AppSvr->loadSetting(__DIR__."/swoole.ini"); //加载配置文件
$AppSvr->setLogger(new \Swoole\Log\EchoLog(true)); //Logger
$server = new \Swoole\Network\Server(&#39;0.0.0.0&#39;, 9503);
$server->setProtocol($AppSvr);
//$server->daemonize(); //作为守护进程
$server->run(array(&#39;worker_num&#39; =>4));