Protocol\FCGI\Record\Params::unpackPayload PHP Méthode

    protected static function unpackPayload(Record $self, $data)
    {
        $currentOffset = 0;
        do {
            list($nameLengthHigh) = array_values(unpack('CnameLengthHigh', $data));
            $isLongName = $nameLengthHigh >> 7 == 1;
            $valueOffset = $isLongName ? 4 : 1;
            list($valueLengthHigh) = array_values(unpack('CvalueLengthHigh', substr($data, $valueOffset)));
            $isLongValue = $valueLengthHigh >> 7 == 1;
            $dataOffset = $valueOffset + ($isLongValue ? 4 : 1);
            $formatParts = array($isLongName ? 'NnameLength' : 'CnameLength', $isLongValue ? 'NvalueLength' : 'CvalueLength');
            $format = join('/', $formatParts);
            list($nameLength, $valueLength) = array_values(unpack($format, $data));
            // Clear top bit for long record
            $nameLength &= $isLongName ? 0x7fffffff : 0x7f;
            $valueLength &= $isLongValue ? 0x7fffffff : 0x7f;
            list($nameData, $valueData) = array_values(unpack("a{$nameLength}nameData/a{$valueLength}valueData", substr($data, $dataOffset)));
            $self->values[$nameData] = $valueData;
            $keyValueLength = $dataOffset + $nameLength + $valueLength;
            $data = substr($data, $keyValueLength);
            $currentOffset += $keyValueLength;
        } while ($currentOffset < $self->getContentLength());
        return $self;
    }