README

Overview

Replacement of hidehalo/nanoid-php to work with PHP 7.1+

A tiny (179 bytes), secure URL-friendly unique string ID generator for JavaScript

Safe. It uses cryptographically strong random APIs and guarantees a proper distribution of symbols.

Small. Only 179 bytes (minified and gzipped). No dependencies. It uses Size Limit to control size.

Compact. It uses more symbols than UUID (A-Za-z0-9_-) and has the same number of unique options in just 21 symbols instead of 36.

Install

Via Composer

composer require better/nanoid

Usage

Normal

The main module uses URL-friendly symbols (A-Za-z0-9_-) and returns an ID with 21 characters (to have the same collisions probability as UUID v4).

use Better\Nanoid\Client;
use Better\Nanoid\GeneratorInterface;

$client = new Client();

# default random generator
echo $client->produce($size = 32);

# more secure generator with more entropy
echo $client->produce($size = 32, true);

Custom Alphabet or Length

$client = new Client('0123456789abcdefg');
$client->produce();

Alphabet must contain 256 symbols or less. Otherwise, the generator will not be secure.

Custom Random Bytes Generator

# PS: anonymous class is new feature when PHP_VERSION >= 7.0

$client = new Client();

echo $client->produceUsing(new class implements GeneratorInterface {
    /**
     * @inheritDoc
     */
    public function random(int $size): string
    {
        $ret = [];
        
        while ($size--) {
            $ret[] = mt_rand(0, 255);
        }

        return $ret;
    }
});

random callback must accept the array size and return an array with random numbers.

Credits

• ai
• hidehalo

License

The MIT License (MIT). Please see License File for more information.