Class to generate a UUID according to the RFC 4122 standard. Support for version 1, 3, 4 and 5 UUID are built-in.

3.0.1 2017-09-03 23:32 UTC


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Laravel package to generate and to validate a universally unique identifier (UUID) according to the RFC 4122 standard. Support for version 1, 3, 4 and 5 UUIDs are built-in.

What's new in 3.*

Laravel-uuid is now refactored for Laravel 5.5. It has the same requirements so that means PHP 7. Laravel package auto-discovery is enabled, and you can now use the UUID validation. Validation examples are below and in the tests.

Laravel 5.0, 5.1, 5.2, 5.3 and 5.4? use version 2

Laravel 4.*? use version 1


In Laravel 5.5 laravel-uuid will install via the new package discovery feature so you only need to add the package to your composer.json file

composer require "webpatser/laravel-uuid:^3.0"

after installation you should see

Discovered Package: webpatser/laravel-uuid

and you are ready to go

Basic Usage

To quickly generate a UUID just do


This will generate a version 1 Uuid object with a random generated MAC address.

To echo out the generated UUID, cast it to a string

(string) Uuid::generate()



Advanced Usage

UUID creation

Generate a version 1, time-based, UUID. You can set the optional node to the MAC address. If not supplied it will generate a random MAC address.


Generate a version 3, name-based using MD5 hashing, UUID

Uuid::generate(3,'test', Uuid::NS_DNS);

Generate a version 4, truly random, UUID


Generate a version 5, name-based using SHA-1 hashing, UUID

Uuid::generate(5,'test', Uuid::NS_DNS);

Some magic features

To import a UUID

$uuid = Uuid::import('d3d29d70-1d25-11e3-8591-034165a3a613');

Extract the time for a time-based UUID (version 1)

$uuid = Uuid::generate(1);

Extract the version of an UUID

$uuid = Uuid::generate(4);

Eloquent UUID generation

If you want an UUID magically be generated in your Laravel models, just add this boot method to your Model.

 *  Setup model event hooks
public static function boot()
    self::creating(function ($model) {
        $model->uuid = (string) Uuid::generate(4);

This will generate a version 4 UUID when creating a new record.

Model binding to UUID instead of primary key

If you want to use the UUID in URLs instead of the primary key, you can add this to your model (where 'uuid' is the column name to store the UUID)

 * Get the route key for the model.
 * @return string
public function getRouteKeyName()
    return 'uuid';

When you inject the model on your resource controller methods you get the correct record

public function edit(Model $model)
   return view('someview.edit')->with([
        'model' => $model,


Just use like any other Laravel validator.

'uuid-field' => 'uuid'

Or create a validator from scratch. In the example an Uuid object in validated. You can also validate strings $uuid->string, the URN $uuid->urn or the binary value $uuid->bytes

$uuid = Uuid::generate();
$validator = Validator::make(['uuid' => $uuid], ['uuid' => 'uuid']);


Full details on the UUID specification can be found on http://tools.ietf.org/html/rfc4122.