<?php
use Ratchet\ConnectionInterface;
use Ratchet\MessageComponentInterface;

class Trouble implements MessageComponentInterface {
    public function onOpen(ConnectionInterface $conn, , $happens = '', $now = '') { // ???
        $from->send('Welcome to ' . $from->WebSocket->Router->path);
    }

    public function onMessage(ConnectionInterface $from) {
    }

    public function onClose(ConnectionInterface $conn) {
    }

    public function onError(ConnectionInterface $conn, \Exception $e) {
    }
}