Validatable key objects.

v0.1.2 2017-07-05 09:52 UTC

This package is auto-updated.

Last update: 2021-10-15 22:46:07 UTC


Latest Stable Version Total Downloads Latest Unstable Version License

This package provides validatable key objects that are meant to be used as identifiers.

Table Of Contents


The best way to use this package is through Composer:

composer require brightnucleus/keys

Basic Usage

Basic Key class

Usage of the basic BrightNucleus\Keys\Key class is very simple, you just instantiate it by passing the actual value you want to use as a key through the constructor.


<?php namespace Vendor\Package;

use BrightNucleus\Keys\Key;

$key = new Key('my_option');
echo $key;
// Output: 'my_option'

UUID class

An UUID is a "Universally Unique IDentifier".

To use the BrightNucleus\Keys\UUID class, you should instantiate it through one of the named constructors:

  • UUID::uuid1(): Generate a version 1 (time-based) UUID object.
  • UUID::uuid3($namespace, $name): Generate a version 3 (name-based and hashed with MD5) UUID object.
  • UUID::uuid4(): Generate a version 4 (random) UUID object.
  • UUID::uuid5($namespace, $name): Generate a version 5 (name-based and hashed with SHA1) UUID object.


<?php namespace Vendor\Package;

use BrightNucleus\Keys\UUID;

$randomUUID = UUID::uuid4();
echo $randomUUID;
// Output: random UUID, in a format similar to '123e4567-e89b-12d3-a456-426655440000'

$hashedUUID = UUID::uuid5(UUID::NAMESPACE_URL, '');
echo $hashedUUID;
// Output: '63ab6383-0ad4-559a-b16b-afcec9cc77e9'

Advanced Usage

You can extend the BrightNucleus\Keys\Key class to provide your own unique scheme for providing identifiers. Ensure that both the validation as well as the serialization features work as intended for your custom implementation.


<?php namespace Vendor\Package;

use BrightNucleus\Keys\Key;

class TimestampedKey extends Key

     * Initialize a new TimestampedKey object.
    public function __construct()
        $dateTime = new \DateTimeImmutable();
        $this->data = $dateTime->getTimestamp();

$key = new TimestampedKey();
echo $key;
// Output: Unix timestamp value in the format '1499248161';


All feedback / bug reports / pull requests are welcome.


Copyright (c) 2017 Alain Schlesser, Bright Nucleus

This code is licensed under the MIT License.