/**
* Determines the endianness of the host platform and memoizes
* the result to Avro::$endianness.
*
* Based on a similar check perfomed in http://pear.php.net/package/Math_BinaryUtils
*
* @throws AvroException if the endianness cannot be determined.
*/
private static function set_endianness()
{
$packed = pack('d', 1);
switch ($packed) {
case "?ð":
self::$endianness = self::BIG_ENDIAN;
break;
case "ð?":
self::$endianness = self::LITTLE_ENDIAN;
break;
default:
throw new AvroException(sprintf('Error determining platform endianness: %s', AvroDebug::hex_string($packed)));
}
}
