Last updated February 28, 2020

Symfony is an application framework written in PHP that can be used to create robust web applications. The Symfony framework consists of numerous reusable components, many of which Drupal 8 includes in its core library. Learning Symfony will help you advance your skills as a web developer as well as give you a greater understanding of how things work "under the hood" in Drupal 8.

What is Symfony?

Symfony is a set of PHP Components, a Web Application framework, a Philosophy, and a Community -- all working together in harmony.

What are Symfony Components?

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

Example tasks

  • Create PHP web applications using best practices
  • Create routes and controllers
  • Create and use special PHP objects called services
  • Organize code into reusable chunks


Drupalize.Me includes resources for learning Symfony versions 3 and 4 produced by our friends Ryan Weaver--Symfony documentation lead--and Leanna Pelham at SymfonyCasts (formerly KnpUniversity). The current version of Symfony is 4, but Drupal 8.3 and earlier use Symfony 3 components, and we have included tutorials for all versions. The official Symfony documentation is the canonical source and should be consulted in conjunction with other training materials.

Drupalize.Me resources

In November 2017, Symfony released its latest major version: Symfony 4! That's great! Right? But what does this mean for Drupal? And more importantly, what does it mean for your Drupal projects?


More Guides

We have guides on many Drupal skills and topics.

Explore guides

External resources