is64bits = PHP_INT_SIZE == 8; $tmp = unpack('S', "\x01\x00"); // to maintain 5.3 compatibility $this->isLittleEndian = $tmp[1] == 1; } /** * Converts byte-string between native and network byte order, in both directions * * @param string $byteStr * @return string */ protected function correctEndianness($byteStr) { return $this->isLittleEndian ? strrev($byteStr) : $byteStr; } }