Symfony Framework

The leading PHP framework to create websites and web applications. Built on top of the Symfony Components.

Symfony Components

A set of decoupled and reusable components on which the best PHP applications are built, such as Drupal, phpBB, and eZ Publish.

Symfony Community

A huge community of Symfony fans committed to take PHP to the next level.

Symfony Philosophy

Embracing and promoting professionalism, best practices, standardization and interoperability of applications.

Ref:http://symfony.com