use BrilliantPackages\FileMakerUuid\Uuid;
$uuid = Uuid::numeric()->toString();

// Results in something like 12063716518403015373000001000000000000000.

Format

A 41-digit delimited number of the form:

vrmmmmmmmmmmmmTssssssscccccnnnnnnnnnnnnnnn
With version 1 and 2 UUIDs, the sections of the UUID correspond to:
- v: The UUID version (type) number: 1
- r: A variant code reserved by the RFC 4122 standard: 2
- m: The creation timestamp (seconds since 0001-01-01T00:00:00), or as close as we can get with PHP/Unix Epoch
- s: PHP microseconds
- c: Random bits ("session key" in FM)
- n: IP Address as a long ("Device ID" in FM)