CMD 中的 websocket 没有响应

Question

我正在尝试在我的本地 WAMP 服务器上设置网络套接字，我已经关注了几个文档，现在我正处于这一点。我首先安装了composer然后为PHP安装了Ratchet，然后我创建了2个PHP文件：

server.php

:

<?php 
require 'Chat.php';
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use MyApp\Chat;

require dirname(__DIR__) . '/www/vendor/autoload.php';

$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new Chat()
        )
    ),
    8080
);

$server->run();

Chat.php

:

<?php

namespace MyApp;

require 'vendor/autoload.php';
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;

class Chat implements MessageComponentInterface
{
    protected $clients;

    public function __construct()
    {
        $this->clients = new \SplObjectStorage;
    }

    public function onOpen(ConnectionInterface $conn)
    {
        $this->clients->attach($conn);
        echo "Nouvelle connexion : ({$conn->resourceId})\n";
    }

    public function onMessage(ConnectionInterface $from, $msg)
    {
        foreach ($this->clients as $client) {
            if ($from !== $client) {
                $client->send($msg);
            }
        }
    }

    public function onClose(ConnectionInterface $conn)
    {
        $this->clients->detach($conn);
        echo "Connexion fermée : ({$conn->resourceId})\n";
    }

    public function onError(ConnectionInterface $conn, \Exception $e)
    {
        echo "Erreur : ({$conn->resourceId}) : {$e->getMessage()}\n";
        $conn->close();
    }
}

最后，我打开我的CMD并运行：

php server.php

这是我从 CMD 得到的回复：

没有，这就是问题所在，通常我会收到这个：

Starting WebSocket server on: 0.0.0.0:8080

就好像程序在循环运行一样，像一个while循环。如何解决问题？