Translation Component ===================== Translation provides tools for loading translation files and generating translated strings from these including support for pluralization. use Symfony\Component\Translation\Translator; use Symfony\Component\Translation\MessageSelector; use Symfony\Component\Translation\Loader\ArrayLoader; $translator = new Translator('fr_FR', new MessageSelector()); $translator->setFallbackLocales(array('fr')); $translator->addLoader('array', new ArrayLoader()); $translator->addResource('array', array( 'Hello World!' => 'Bonjour', ), 'fr'); echo $translator->trans('Hello World!')."\n"; Resources --------- Silex integration: https://github.com/fabpot/Silex/blob/master/src/Silex/Provider/TranslationServiceProvider.php Documentation: http://symfony.com/doc/2.4/book/translation.html You can run the unit tests with the following command: $ cd path/to/Symfony/Component/Translation/ $ composer.phar install $ phpunit