Symfony

The components of the Symfony 2  framework are used by many impressive projects such as the Drupal content management system, or the phpBB forum software, but Laravel – the framework listed above – also relies on it. Symfony has a wide developer community and many ardent fans.

Symfony Components are reusable PHP libraries that you can complete different tasks with, such as form creation, object configuration, routing, authentication, templating, and many others. You can install any of the Components with the Composer PHP dependency manager. The website of Symfony has a cool showcase section where you can take a peek at the projects developers accomplished with the help of this handy framework.