PHP Nuts and Bolts (a.k.a. Penub) is an MVC development framework for PHP. Penub uses the same approach as Jakarta Struts but has significant differences too, to adjust to PHP language specifics. Penub has also introduced pServlet (web.xml-configured URI pattern handler) and custom-tag based templating systems to support main goal of MVC framework building. Please, see the Penub Architecture Diagram for more information.
Project is in Proof-of-Concept/initial development phase. There will be no documentation published until pre-alpha (first working) release. Meanwhile, the only source of information is project workarea.