HashIds Bundle for Symfony2 - http://hashids.org/php/

Symfony2 bundle for accessing the HashIds library to generate short unique ids from integers

"Hashids is a small open-source library that generates short, unique, non-sequential ids from numbers. It converts numbers like 347 into strings like “yr8”, or array of numbers like [27, 986] into “3kTMd”. You can also decode those ids back. This is useful in bundling several parameters into one or simply using them as short UIDs."

1. Include in composer.json

"jasonbradley/hash-ids-bundle": "dev-master"

2. Include in AppKernel.php

new JasonBradley\HashIdsBundle\JasonBradleyHashIdsBundle()

3. Bundle Configuration example (config.yml)

jason_bradley_hash_ids:
    salt: abc123
    min_hash_length: 25
    alphabet: "abcdefghijklmnopqrstuvwxyz"

To use the service

$hash = $this->get('hash_ids')
            ->encode(123);

$numbers = $this->get('hash_ids')
    ->decode($hash);