如何允许多个并发请求棘手WebSocket？

Question

How WebSocket server handles multiple incoming connection requests?

上面的链接说明了如何建立tcp连接。但是我仍然想知道如何启用对websocket的并发请求。当前，即使100个连接同时连接，websocket也无法处理它们。

  

服务器文件：

 $server = IoServer::factory(

        new HttpServer(
            new WsServer(
               $app = new Chat()
            )
        ),

        8888,
        '0.0.0.0'

    );

$currentTime =  new DateTime(date('Y-m-d H:i:s'));
$obj = new stdClass();

 $server->loop->addPeriodicTimer(1, 

     function ($timer) use ($server, &$currentTime, $app) {

        $currentTime = $currentTime->modify('+01 seconds');

        /*process ends*/

        foreach ($app->clients as $key => $client) {

            $client->send(json_encode($currentTime->format('Y-m-d H:i:s')));

        }
        } 
 });


$server->run();

  

客户端文件

var data = null;
  conn = new WebSocket('ws://ip:8888');//ip is the ip address
  conn.onopen = function(e){
  console.log('Client Connected!');

 };

 conn.onmessage = function(e){
 console.debug(e.data);
}

如何在上面的服务器文件中启用并发请求？我做错了什么事情使得很难同时处理多个连接吗？