* lightweight Inversion-of-Control container with first-class support for Dependency Injection. * Powerful, easy-to use Model-View-Controller implementation. * Enables you to use the powerful techniques of Aspect Oriented Programming. * Validation and filtering framework with built-in rules as well as support for custom validation of any object.

* 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.