PHP5 framework which helps you to develop any kind of Web application. LGPL

Jelix 1.0.3 is designed to provide high performance on heavily-loaded Web sites. It is fully object oriented, highly modular, and extensible. It is made with well-known design pattern such as MVC and DAO. It natively supports many output formats, including XHTML, XUL, RSS, ATOM, RDF, ZIP, XML, and PDF. Jelix eases Web service development. It includes a powerful form system to create all kinds of forms, including CRUD forms.