Class Ramsey\Uuid\Uuid

`implements`	`UuidInterface`
`uses`	`DeprecatedUuidMethodsTrait`

Uuid provides constants and static methods for working with and generating UUIDs

Methods


					
	public

__construct(
	FieldsInterface $fields,
	NumberConverterInterface $numberConverter,
	CodecInterface $codec,
	TimeConverterInterface $timeConverter,
)

Creates a universally unique identifier (UUID) from an array of fields

Unless you're making advanced use of this library to generate identifiers that deviate from RFC 4122, you probably do not want to instantiate a UUID directly. Use the static methods, instead:

use Ramsey\Uuid\Uuid;

$timeBasedUuid = Uuid::uuid1();
$namespaceMd5Uuid = Uuid::uuid3(Uuid::NAMESPACE_URL, 'http://php.net/');
$randomUuid = Uuid::uuid4();
$namespaceSha1Uuid = Uuid::uuid5(Uuid::NAMESPACE_URL, 'http://php.net/');

Parameters

`$fields`	The fields from which to construct a UUID
`$numberConverter`	The number converter to use for converting hex values to/from integers
`$codec`	The codec to use when encoding or decoding UUID strings
`$timeConverter`	The time converter to use for converting timestamps extracted from a UUID to unix timestamps


					
	public

__toString(): string

Implements

Stringable::__toString()


					
	public

jsonSerialize(): string

Converts the UUID to a string for JSON serialization

Implements

JsonSerializable::jsonSerialize()


					
	public

serialize(): string

Converts the UUID to a string for PHP serialization

Implements

Serializable::serialize()


					
	public

__serialize(): array{bytes: string}


					
	public

unserialize(string $data): void

Re-constructs the object from its serialized form

Parameters

$data

The serialized PHP string to unserialize into a UuidInterface instance

Implements

Serializable::unserialize()


					
	public

__unserialize(array{bytes?: string} $data): void


					
	public

compareTo(UuidInterface $other): int

Returns -1, 0, or 1 if the UUID is less than, equal to, or greater than the other UUID

The first of two UUIDs is greater than the second if the most significant field in which the UUIDs differ is greater for the first UUID.

Q. What's the value of being able to sort UUIDs?
A. Use them as keys in a B-Tree or similar mapping.

Parameters

$other

The UUID to compare

Returns

-1, 0, or 1 if the UUID is less than, equal to, or greater than $other

Implements

Ramsey\Uuid\UuidInterface::compareTo()


					
	public

equals(?object $other): bool

Returns true if the UUID is equal to the provided object

The result is true if and only if the argument is not null, is a UUID object, has the same variant, and contains the same value, bit for bit, as the UUID.

Parameters

$other

An object to test for equality with this UUID

Returns

True if the other object is equal to this UUID

Implements

Ramsey\Uuid\UuidInterface::equals()


					
	public

getBytes(): string

Returns the binary string representation of the UUID

Implements

Ramsey\Uuid\UuidInterface::getBytes()


					
	public

getFields(): FieldsInterface

Returns the fields that comprise this UUID

Implements

Ramsey\Uuid\UuidInterface::getFields()


					
	public

getHex(): Hexadecimal

Returns the hexadecimal representation of the UUID

Implements

Ramsey\Uuid\UuidInterface::getHex()


					
	public

getInteger(): Integer

Returns the integer representation of the UUID

Implements

Ramsey\Uuid\UuidInterface::getInteger()


					
	public

getUrn(): string

Returns the string standard representation of the UUID as a URN

Implements

Ramsey\Uuid\UuidInterface::getUrn()


					
	public

toString(): string

Returns the string standard representation of the UUID

Implements

Ramsey\Uuid\UuidInterface::toString()


					
	public
					static

getFactory(): UuidFactoryInterface

Returns the factory used to create UUIDs


					
	public
					static

setFactory(UuidFactoryInterface $factory): void

Sets the factory used to create UUIDs

Parameters

$factory

A factory that will be used by this class to create UUIDs


					
	public
					static

fromBytes(string $bytes): UuidInterface

Creates a UUID from a byte string

Parameters

$bytes

A binary string

Returns

A UuidInterface instance created from a binary string representation


					
	public
					static

fromString(string $uuid): UuidInterface

Creates a UUID from the string standard representation

Parameters

$uuid

A hexadecimal string

Returns

A UuidInterface instance created from a hexadecimal string representation


					
	public
					static

fromDateTime(DateTimeInterface $dateTime, Hexadecimal|null $node = null, int|null $clockSeq = null): UuidInterface

Creates a UUID from a DateTimeInterface instance

Parameters

`$dateTime`	The date and time
`$node`	A 48-bit number representing the hardware address
`$clockSeq`	A 14-bit number used to help avoid duplicates that could arise when the clock is set backwards in time or if the node ID changes

Returns

A UuidInterface instance that represents a version 1 UUID created from a DateTimeInterface instance


					
	public
					static

fromHexadecimal(Hexadecimal $hex): UuidInterface

Creates a UUID from the Hexadecimal object

Parameters

$hex

Hexadecimal object representing a hexadecimal number

Returns

A UuidInterface instance created from the Hexadecimal object representing a hexadecimal number


					
	public
					static

fromInteger(string $integer): UuidInterface

Creates a UUID from a 128-bit integer string

Parameters

$integer

String representation of 128-bit integer

Returns

A UuidInterface instance created from the string representation of a 128-bit integer


					
	public
					static

isValid(string $uuid): bool

Returns true if the provided string is a valid UUID

Parameters

$uuid

A string to validate as a UUID

Returns

True if the string is a valid UUID, false otherwise


					
	public
					static

uuid1(Hexadecimal|int|string|null $node = null, int|null $clockSeq = null): UuidInterface

Returns a version 1 (Gregorian time) UUID from a host ID, sequence number, and the current time

Parameters

`$node`	A 48-bit number representing the hardware address; this number may be represented as an integer or a hexadecimal string
`$clockSeq`	A 14-bit number used to help avoid duplicates that could arise when the clock is set backwards in time or if the node ID changes

Returns

A UuidInterface instance that represents a version 1 UUID


					
	public
					static

uuid2(
	int $localDomain,
	Integer|null $localIdentifier = null,
	Hexadecimal|null $node = null,
	int|null $clockSeq = null,
): UuidInterface

Returns a version 2 (DCE Security) UUID from a local domain, local identifier, host ID, clock sequence, and the current…

Returns a version 2 (DCE Security) UUID from a local domain, local identifier, host ID, clock sequence, and the current time

Parameters

`$localDomain`	The local domain to use when generating bytes, according to DCE Security
`$localIdentifier`	The local identifier for the given domain; this may be a UID or GID on POSIX systems, if the local domain is person or group, or it may be a site-defined identifier if the local domain is org
`$node`	A 48-bit number representing the hardware address
`$clockSeq`	A 14-bit number used to help avoid duplicates that could arise when the clock is set backwards in time or if the node ID changes (in a version 2 UUID, the lower 8 bits of this number are replaced with the domain).

Returns

A UuidInterface instance that represents a version 2 UUID


					
	public
					static

uuid3(string|UuidInterface $ns, string $name): UuidInterface

Returns a version 3 (name-based) UUID based on the MD5 hash of a namespace ID and a name

Parameters

`$ns`	The namespace (must be a valid UUID)
`$name`	The name to use for creating a UUID

Returns

A UuidInterface instance that represents a version 3 UUID


					
	public
					static

uuid4(): UuidInterface

Returns a version 4 (random) UUID

Returns

A UuidInterface instance that represents a version 4 UUID


					
	public
					static

uuid5(string|UuidInterface $ns, string $name): UuidInterface

Returns a version 5 (name-based) UUID based on the SHA-1 hash of a namespace ID and a name

Parameters

`$ns`	The namespace (must be a valid UUID)
`$name`	The name to use for creating a UUID

Returns

A UuidInterface instance that represents a version 5 UUID


					
	public
					static

uuid6(Hexadecimal|null $node = null, int|null $clockSeq = null): UuidInterface

Returns a version 6 (reordered time) UUID from a host ID, sequence number, and the current time

Parameters

`$node`	A 48-bit number representing the hardware address
`$clockSeq`	A 14-bit number used to help avoid duplicates that could arise when the clock is set backwards in time or if the node ID changes

Returns

A UuidInterface instance that represents a version 6 UUID


					
	public
					static

uuid7(DateTimeInterface|null $dateTime = null): UuidInterface

Returns a version 7 (Unix Epoch time) UUID

Parameters

$dateTime

An optional date/time from which to create the version 7 UUID. If not provided, the UUID is generated using the current date/time.

Returns

A UuidInterface instance that represents a version 7 UUID


					
	public
					static

uuid8(string $bytes): UuidInterface

Returns a version 8 (custom) UUID

The bytes provided may contain any value according to your application's needs. Be aware, however, that other applications may not understand the semantics of the value.

Parameters

$bytes

A 16-byte octet string. This is an open blob of data that you may fill with 128 bits of information. Be aware, however, bits 48 through 51 will be replaced with the UUID version field, and bits 64 and 65 will be replaced with the UUID variant. You MUST NOT rely on these bits for your application needs.

Returns

A UuidInterface instance that represents a version 8 UUID

Methods used from Ramsey\Uuid\DeprecatedUuidMethodsTrait
getClockSeqHiAndReserved(), getClockSeqHiAndReservedHex(), getClockSeqLow(), getClockSeqLowHex(), getClockSequence(), getClockSequenceHex(), getNumberConverter(), getDateTime(), getFieldsHex(), getLeastSignificantBits(), getLeastSignificantBitsHex(), getMostSignificantBits(), getMostSignificantBitsHex(), getNode(), getNodeHex(), getTimeHiAndVersion(), getTimeHiAndVersionHex(), getTimeLow(), getTimeLowHex(), getTimeMid(), getTimeMidHex(), getTimestamp(), getTimestampHex(), getVariant(), getVersion()

Methods used from Ramsey\Uuid\DeprecatedUuidMethodsTrait

getClockSeqHiAndReserved(), getClockSeqHiAndReservedHex(), getClockSeqLow(), getClockSeqLowHex(), getClockSequence(), getClockSequenceHex(), getNumberConverter(), getDateTime(), getFieldsHex(), getLeastSignificantBits(), getLeastSignificantBitsHex(), getMostSignificantBits(), getMostSignificantBitsHex(), getNode(), getNodeHex(), getTimeHiAndVersion(), getTimeHiAndVersionHex(), getTimeLow(), getTimeLowHex(), getTimeMid(), getTimeMidHex(), getTimestamp(), getTimestampHex(), getVariant(), getVersion()

Constants
`public`	`NAMESPACE_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8'` When this namespace is specified, the name string is a fully-qualified domain name When this namespace is specified, the name string is a fully-qualified domain name	#
`public`	`NAMESPACE_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8'` When this namespace is specified, the name string is a URL When this namespace is specified, the name string is a URL	#
`public`	`NAMESPACE_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8'` When this namespace is specified, the name string is an ISO OID When this namespace is specified, the name string is an ISO OID	#
`public`	`NAMESPACE_X500 = '6ba7b814-9dad-11d1-80b4-00c04fd430c8'` When this namespace is specified, the name string is an X.500 DN in DER or a text output format When this namespace is specified, the name string is an X.500 DN in DER or a text output format	#
`public`	`NIL = '00000000-0000-0000-0000-000000000000'` The nil UUID is a special form of UUID that is specified to have all 128 bits set to zero The nil UUID is a special form of UUID that is specified to have all 128 bits set to zero	#
`public`	`MAX = 'ffffffff-ffff-ffff-ffff-ffffffffffff'` The max UUID is a special form of UUID that is specified to have all 128 bits set to one The max UUID is a special form of UUID that is specified to have all 128 bits set to one	#
`public`	`RESERVED_NCS = 0` Variant: reserved, NCS backward compatibility Variant: reserved, NCS backward compatibility	#
`public`	`RFC_4122 = 2` Variant: the UUID layout specified in RFC 4122 Variant: the UUID layout specified in RFC 4122	#
`public`	`RESERVED_MICROSOFT = 6` Variant: reserved, Microsoft Corporation backward compatibility Variant: reserved, Microsoft Corporation backward compatibility	#
`public`	`RESERVED_FUTURE = 7` Variant: reserved for future definition Variant: reserved for future definition	#
`public`	`VALID_PATTERN = '^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$'`	#
`public`	`UUID_TYPE_TIME = 1` Version 1 (Gregorian time) UUID Version 1 (Gregorian time) UUID	#
`public`	`UUID_TYPE_DCE_SECURITY = 2` Version 2 (DCE Security) UUID Version 2 (DCE Security) UUID	#
`public`	`UUID_TYPE_IDENTIFIER = 2`	#
`public`	`UUID_TYPE_HASH_MD5 = 3` Version 3 (name-based and hashed with MD5) UUID Version 3 (name-based and hashed with MD5) UUID	#
`public`	`UUID_TYPE_RANDOM = 4` Version 4 (random) UUID Version 4 (random) UUID	#
`public`	`UUID_TYPE_HASH_SHA1 = 5` Version 5 (name-based and hashed with SHA1) UUID Version 5 (name-based and hashed with SHA1) UUID	#
`public`	`UUID_TYPE_PEABODY = 6`	#
`public`	`UUID_TYPE_REORDERED_TIME = 6` Version 6 (reordered time) UUID Version 6 (reordered time) UUID	#
`public`	`UUID_TYPE_UNIX_TIME = 7` Version 7 (Unix Epoch time) UUID Version 7 (Unix Epoch time) UUID	#
`public`	`UUID_TYPE_CUSTOM = 8`	#
`public`	`DCE_DOMAIN_PERSON = 0` DCE Security principal domain DCE Security principal domain	#
`public`	`DCE_DOMAIN_GROUP = 1` DCE Security group domain DCE Security group domain	#
`public`	`DCE_DOMAIN_ORG = 2` DCE Security organization domain DCE Security organization domain	#
`public`	`DCE_DOMAIN_NAMES = [ self::DCE_DOMAIN_PERSON => 'person', self::DCE_DOMAIN_GROUP => 'group', self::DCE_DOMAIN_ORG => 'org', ]` DCE Security domain string names DCE Security domain string names	#

Properties
`protected`	`CodecInterface`	`$codec`	#
`protected`	`NumberConverterInterface`	`$numberConverter`	#
`protected`	`FieldsInterface`	`$fields`	#
`protected`	`TimeConverterInterface`	`$timeConverter`	#

Namespaces

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Traits

Class Ramsey\Uuid\Uuid

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