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我有一个用棘轮编写的 websocket 服务器，它在绑定到 127.0.0.1:5555 时运行良好。但是，我需要在同一台机器上运行脚本的另一个实例，所以我尝试创建另一个绑定到不同端口的实例，但是客户端可以连接并订阅一个主题，但他们没有收到任何数据应该被推过连接。我尝试了许多不同的端口，甚至不同的环回 (127.0.0.1/8)，但似乎唯一可行的是 127.0.0.1:5555。如何让其他端口或环回工作？

实例 #1，有效：

// Listen for the web server to make a ZeroMQ push after an ajax request
$context = new React\ZMQ\Context($loop);
$pull = $context->getSocket(ZMQ::SOCKET_PULL);
$pull->bind('127.0.0.1:5555'); // Binding to 127.0.0.1 means the only client that can connect is itself
$pull->on('message', array($pusher, 'onUpdate'));

// Set up our WebSocket server for clients wanting real-time updates
$webSock = new React\Socket\Server($loop);
$webSock->listen(8080, '0.0.0.0'); // Binding to 0.0.0.0 means remotes can connect
$webServer = new Ratchet\Server\IoServer(
        new Ratchet\Http\HttpServer(
        new Ratchet\WebSocket\WsServer(
        new Ratchet\Wamp\WampServer(
        $pusher
        )
        )
        ), $webSock
);

$loop->run();

实例 #2，绑定到另一个端口，它不起作用：

// Listen for the web server to make a ZeroMQ push after an ajax request
$context = new React\ZMQ\Context($loop);
$pull = $context->getSocket(ZMQ::SOCKET_PULL);
$pull->bind('127.0.0.1:4444'); // Binding to 127.0.0.1 means the only client that can connect is itself
$pull->on('message', array($pusher, 'onUpdate'));

// Set up our WebSocket server for clients wanting real-time updates
$webSock = new React\Socket\Server($loop);
$webSock->listen(9090, '0.0.0.0'); // Binding to 0.0.0.0 means remotes can connect
$webServer = new Ratchet\Server\IoServer(
        new Ratchet\Http\HttpServer(
        new Ratchet\WebSocket\WsServer(
        new Ratchet\Wamp\WampServer(
        $pusher
        )
        )
        ), $webSock
);

$loop->run();
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