Symfony is a web application framework written in PHP which follows the model-view-controller (MVC) paradigm. It provides an architecture, components and tools for developers to build complex web applications faster by minimizing repetitive coding tasks.
Drupal is an open source content management platform licensed under
the GPL. Equipped with a powerful blend of features, Drupal can support
a variety of websites ranging from personal blogs, corporate brochures
and large community-driven websites.