Symfony is an Open Source PHP framework for developing web applications. It was originally conceived by the interactive agency SensioLabs for the development of web sites for its own customers. Thousands of websites and applications rely on the Symfony framework and the Symfony components as the foundation of their web services. And most of the leading PHP projects, such as Drupal, phpBB, Laravel and eZ Publish use Symfony components to build their applications..
It is supported by a huge community of Symfony fans committed to take PHP to the next level. Moreover, Symfony follows a philosophy of embracing and promoting professionalism, best practices, standardization and interoperability of applications.