Yana 4 PHP Framework. Free for non-commercial use,

freshmeat.net: "The Yana Framework is a component framework for developing PHP applications. It can be expanded with your own plugins (components). It includes skin and template support, multiple languages (German and English by default), mature administration functionality, multiple installation profiles, user login and administration, a database API based on PEAR-DB that also offers database schema support, and a GUI/code generator for your own plugins. It also includes an easy to use query tool that automatically maps database commands to a flat file if no database support is available. Plugins provided with this software are a guestbook, an RSS to HTML converter, and a search engine. Complete (German) documentation is included."