DoraRPC\Packet::packEncode PHP Метод

    public static function packEncode($data, $type = "tcp")
    {
        if ($type == "tcp") {
            $sendStr = serialize($data);
            //if compress the packet
            if (DoraConst::SW_DATACOMPRESS_FLAG == true) {
                $sendStr = gzencode($sendStr, 4);
            }
            if (DoraConst::SW_DATASIGEN_FLAG == true) {
                $signedcode = pack('N', crc32($sendStr . DoraConst::SW_DATASIGEN_SALT));
                $sendStr = pack('N', strlen($sendStr) + 4) . $signedcode . $sendStr;
            } else {
                $sendStr = pack('N', strlen($sendStr)) . $sendStr;
            }
            return $sendStr;
        } else {
            if ($type == "http") {
                $sendStr = json_encode($data);
                return $sendStr;
            } else {
                return self::packFormat("packet type wrong", 100006);
            }
        }
    }