PhpOrient\Protocols\Binary\Abstracts\Operation::_read_sync PHP Method

    public function _read_sync()
    {
        # type of response
        # decode body char with flag continue ( Header already read )
        $response_type = $this->_readChar();
        $res = [];
        switch ($response_type) {
            case 'n':
                # get end Line \x00
                $this->_readChar();
                $res = array(null);
                break;
            case $response_type == 'r' || $response_type == 'w':
                $res = [Record::fromConfig($this->_readRecord())];
                # get end Line \x00
                $this->_readChar();
                break;
            case 'a':
                $res = [$this->_readString()];
                # get end Line \x00
                $this->_readChar();
                break;
            case 'l':
                $list_len = $this->_readInt();
                for ($n = 0; $n < $list_len; $n++) {
                    $res[] = Record::fromConfig($this->_readRecord());
                }
                # async-result-type can be:
                # 0: no records remain to be fetched
                # 1: a record is returned as a result set
                # 2: a record is returned as pre-fetched to be loaded in client's
                #       cache only. It's not part of the result set but the client
                #       knows that it's available for later access
                $cached_results = $this->_read_prefetch_record();
                $res = array_merge($res, $cached_results);
                # cache = cached_results['cached']
                break;
            default:
                # debug errors
                if (!Constants::$LOGGING) {
                    throw new PhpOrientException('Unknown payload type ' . $response_type);
                }
                $msg = '';
                $m = $this->_transport->getSocket()->read(1);
                while ($m != '') {
                    $msg .= $m;
                    $this->_transport->hexDump($msg);
                    $m = $this->_transport->getSocket()->read(1);
                }
                break;
        }
        return $res;
    }