<?php namespace Ratchet\WebSocket\Version; use Guzzle\Http\Message\RequestInterface; class HyBi10 extends RFC6455 { public function isProtocol(RequestInterface $request) { $version = (int)$request->getHeader('Sec-WebSocket-Version', -1); return ($version >= 6 && $version < 13); } public function getVersionNumber() { return 6; } }