Jelix is an open-source PHP5 framework which help you to develop any kind of web applications:

  • Designed for both little web sites and and huge-loaded web sites.
  • Fully object oriented, highly modular and extensible.
  • Made on known design pattern: MVC, DAO..
  • Support natively many output format: XHTML, XUL, RSS, ATOM, RDF, ZIP, XML, PDF, etc.
  • Make web services developement easier : XML-RPC, JSON, and other Ajax stuffs.
  • Include a powerful form system to create all kind of forms, including CRUD forms.
  • Include many more other features...

Source: Jelix