Hprose\Swoole\Socket\Service::socketSend PHP Method

    public function socketSend($server, $socket, $data, $id)
    {
        $dataLength = strlen($data);
        if ($id === null) {
            $this->send($server, $socket, pack("N", $dataLength));
        } else {
            $this->send($server, $socket, pack("NN", $dataLength | 0x80000000, $id));
        }
        if ($dataLength <= self::MAX_PACK_LEN) {
            return $this->send($server, $socket, $data);
        } else {
            for ($i = 0; $i < $dataLength; $i += self::MAX_PACK_LEN) {
                if (!$this->send($server, $socket, substr($data, $i, min($dataLength - $i, self::MAX_PACK_LEN)))) {
                    return false;
                }
            }
            return true;
        }
    }