class Guid

Guid represents a UUID with "native" (little-endian) byte order

From Wikipedia:

> The first three fields are unsigned 32- and 16-bit integers and are subject > to swapping, while the last two fields consist of uninterpreted bytes, not > subject to swapping. This byte swapping applies even for versions 3, 4, and > 5, where the canonical fields do not correspond to the content of the UUID.

The first three fields of a GUID are encoded in little-endian byte order, while the last three fields are in network (big-endian) byte order. This is according to the history of the Microsoft definition of a GUID.

According to the .NET Guid.ToByteArray method documentation:

> Note that the order of bytes in the returned byte array is different from > the string representation of a Guid value. The order of the beginning > four-byte group and the next two two-byte groups is reversed, whereas the > order of the last two-byte group and the closing six-byte group is the > same.

@link https://en.wikipedia.org/wiki/Universally_unique_identifier#Variants UUID Variants on Wikipedia @link https://docs.microsoft.com/en-us/windows/win32/api/guiddef/ns-guiddef-g… Windows GUID structure @link https://docs.microsoft.com/en-us/dotnet/api/system.guid .NET Guid Struct @link https://docs.microsoft.com/en-us/dotnet/api/system.guid.tobytearray .NET Guid.ToByteArray Method

@psalm-immutable

Hierarchy

• class \Ramsey\Uuid\Uuid implements \Ramsey\Uuid\UuidInterface uses \Ramsey\Uuid\DeprecatedUuidMethodsTrait
  • class \Ramsey\Uuid\Guid\Guid extends \Ramsey\Uuid\Uuid

Expanded class hierarchy of Guid

File

vendor/ramsey/uuid/src/Guid/Guid.php, line 51

Namespace

final class Guid extends Uuid {
    public function __construct(Fields $fields, NumberConverterInterface $numberConverter, CodecInterface $codec, TimeConverterInterface $timeConverter) {
        parent::__construct($fields, $numberConverter, $codec, $timeConverter);
    }

}

Members