Symfony UUID Component

Description

Generate UUIDS[fn:uuids] and ULIDS[fn:ulids]

Syntax

use Symfony\Component\Uid\Uuid;
use Symfony\Component\Uid\Ulid;

// generating a random UUID type 4 (all UUID types are supported)
$uuid = Uuid::v4();

// generating a UUID Type 6 (which is not part of the standard, but it’s
// supported by the component because it’s popular enough)
$uuid = Uuid::v6();

// generating a ULID (there’s only one type of them)
$ulid = new Ulid();

// checking if some UUID is null
use Symfony\Component\Uid\NilUuid;
if ($uuid instanceof NilUuid) {
// …
}

// comparing UUIDs
$uuid1=Uuid::v1();$uuid4 = Uuid::v4();
$uuid1->equals($uuid4); // false

// converting to different formats
$ulid=Ulid::fromString{(}^{\prime }01E439TP9XJZ9RPFH3T1PYBCR{8}^{\prime });$ulid->toBinary(); // string(16) ”…” (binary contents can’t be printed)
$ulid->toBase32();//string(26)"01E439TP9XJZ9RPFH3T1PYBCR8"$ulid->toBase58(); // string(22) “1BKocMc5BnrVcuq2ti4Eqm”
$ulid->toRfc4122(); // string(36) “0171069d-593d-97d3-8b3e-23d06de5b308”

Normalization

• [UUID Normalizer](UUID Normalizer)

Footnotes

[fn:ulids]https://github.com/ulid/spec
[fn:uuids]https://en.wikipedia.org/wiki/Universally\_unique\_identifier