Symfony is a PHP web application framework for MVC applications. Symfony is free software and released under the MIT license.



Symfony aims to speed up the creation and maintenance of web applications and to replace repetitive coding tasks.

Symfony has a low performance overhead used with a bytecode cache.

Symfony is aimed at building robust applications in an enterprise context, and aims to give developers full control over the configuration: from the directory structure to the foreign libraries, almost everything can be customized. To match enterprise development guidelines, Symfony is bundled with additional tools to help developers test, debug and document projects.



Symfony was heavily inspired by other Web Application Frameworks such as Ruby On Rails, Django, and Spring.

Symfony makes heavy use of existing PHP open-source projects as part of the framework, including:

  • Propel or Doctrine as Object Relational Mapping layers
  • PDO Database abstraction layer
  • PHPUnit, a unit testing framework
  • Twig, a templating engine
  • Swift Mailer, an e-mail library


Symfony also makes use of its own components, which are freely available on the Symfony Components site for various other projects:

  • Symfony YAML, a YAML parser based upon Spyc
  • Symfony Event Dispatcher
  • Symfony Dependency Injector, a Dependency Injector
  • Symfony Templating, a templating engine


Using plugins, Symfony is able to support JavaScript frameworks and many more PHP projects, such as:

  • Prototype or jQuery, as JavaScript framework
  •, for visual effects
  • lessphp, a LESS to CSS converter
  • TinyMCE or CKEditor, for Rich Text Editing
  • TCPDF, a PHP library for generating PDF documents
  • The inclusion and implementation of a JavaScript library is left to the user.

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