棘轮PHP：绑定到不同于127.0.0.1:5555的端口

Question

我有一个用棘轮编写的websocket服务器，当它绑定到127.0.0.1:5555时效果很好。但是，我需要在同一台机器上运行另一个脚本实例，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，但是他们没有收到任何数据应该被推到连接上。我尝试了很多不同的端口甚至不同的环回（127.0.0.1/8），但似乎唯一有效的是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 ，绑定到另一个无效的端口：

// 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();