.. _reference.helper: ================ Helper Functions ================ ramsey/uuid additionally provides the following helper functions, which return only the string standard representation of a UUID. .. php:function:: Ramsey\\Uuid\\v1([$node[, $clockSeq]]) Generates a string standard representation of a version 1, Gregorian time UUID. :param Ramsey\\Uuid\\Type\\Hexadecimal|null $node: An optional hexadecimal node to use :param int|null $clockSeq: An optional clock sequence to use :returns: A string standard representation of a version 1 UUID :returntype: string .. php:function:: Ramsey\\Uuid\\v2($localDomain[, $localIdentifier[, $node[, $clockSeq]]]) Generates a string standard representation of a version 2, DCE Security UUID. :param int $localDomain: The local domain to use (one of ``Uuid::DCE_DOMAIN_PERSON``, ``Uuid::DCE_DOMAIN_GROUP``, or ``Uuid::DCE_DOMAIN_ORG``) :param Ramsey\\Uuid\\Type\\Integer|null $localIdentifier: A local identifier for the domain (defaults to system UID or GID for *person* or *group*) :param Ramsey\\Uuid\\Type\\Hexadecimal|null $node: An optional hexadecimal node to use :param int|null $clockSeq: An optional clock sequence to use :returns: A string standard representation of a version 2 UUID :returntype: string .. php:function:: Ramsey\\Uuid\\v3($ns, $name) Generates a string standard representation of a version 3, name-based (MD5) UUID. :param Ramsey\\Uuid\\UuidInterface|string $ns: The namespace for this identifier :param string $name: The name from which to generate an identifier :returns: A string standard representation of a version 3 UUID :returntype: string .. php:function:: Ramsey\\Uuid\\v4() Generates a string standard representation of a version 4, random UUID. :returns: A string standard representation of a version 4 UUID :returntype: string .. php:function:: Ramsey\\Uuid\\v5($ns, $name) Generates a string standard representation of a version 5, name-based (SHA-1) UUID. :param Ramsey\\Uuid\\UuidInterface|string $ns: The namespace for this identifier :param string $name: The name from which to generate an identifier :returns: A string standard representation of a version 5 UUID :returntype: string .. php:function:: Ramsey\\Uuid\\v6([$node[, $clockSeq]]) Generates a string standard representation of a version 6, reordered time UUID. :param Ramsey\\Uuid\\Type\\Hexadecimal|null $node: An optional hexadecimal node to use :param int|null $clockSeq: An optional clock sequence to use :returns: A string standard representation of a version 6 UUID :returntype: string