mxmbsocket/src/Socket/Server/EchoServer.php

<?php
namespace mfmdevsystem\socket\Server;
use mfmdevsystem\socket\MessageComponentInterface;
use mfmdevsystem\socket\ConnectionInterface;

/**
 * A simple Ratchet application that will reply to all messages with the message it received
 */
class EchoServer implements MessageComponentInterface {
    public function onOpen(ConnectionInterface $conn) {
    }

    public function onMessage(ConnectionInterface $from, $msg) {
        $from->send($msg);
    }

    public function onClose(ConnectionInterface $conn) {
    }

    public function onError(ConnectionInterface $conn, \Exception $e) {
        $conn->close();
    }
}