appkweb/uuid

Light lib to generate an universally unique identifier V4

1.0.0 2024-09-10 23:22 UTC

Requires

• php: ^8.1

Requires (Dev)

• friendsofphp/php-cs-fixer: ^3.2
• phpstan/phpstan: ^1.8
• phpunit/phpunit: ^9.5

MIT

• Valentin REGNIER

README

Light lib to generate an universally unique identifier V4

Get started

• composer install appkweb/uuid

• public function __construct(
        private readonly UuidService $uuidService,
    )
    {
    }
  
    /**
     * @return void
     * @throws Exception
     */
    public function __invoke():void
    {
        echo "{$this->uuidService->generate()}\n";
    }
  

Sources of Entropy

• Generates 16 random bytes with high entropy, which is excellent for value diversity.
• Provides a timestamp in milliseconds, adding a time dimension.
• Includes the process ID, which varies between processes but is stable during the execution of a specific process.
• Generates an additional random number, adding even more diversity.
• Generates a unique identifier based on the current time and a random number, used in the hash to add additional entropy.