morozovsk\websocket\Daemon::_encode PHP Method

    protected function _encode($payload, $type = 'text')
    {
        $frameHead = array();
        $payloadLength = strlen($payload);
        switch ($type) {
            case 'text':
                // first byte indicates FIN, Text-Frame (10000001):
                $frameHead[0] = 129;
                break;
            case 'close':
                // first byte indicates FIN, Close Frame(10001000):
                $frameHead[0] = 136;
                break;
            case 'ping':
                // first byte indicates FIN, Ping frame (10001001):
                $frameHead[0] = 137;
                break;
            case 'pong':
                // first byte indicates FIN, Pong frame (10001010):
                $frameHead[0] = 138;
                break;
        }
        if ($payloadLength > 65535) {
            $ext = pack('NN', 0, $payloadLength);
            $secondByte = 127;
        } elseif ($payloadLength > 125) {
            $ext = pack('n', $payloadLength);
            $secondByte = 126;
        } else {
            $ext = '';
            $secondByte = $payloadLength;
        }
        return $data = chr($frameHead[0]) . chr($secondByte) . $ext . $payload;
    }