A reverse engineering, metamodel driven tool that scans PHP files and directories, and delivers an UML/XMI representation of the classes / packages found. The XMI code that it generates can be imported into any UML modeling tool. It is available on PEAR.
PLiX (Programming Language in XML) is an XML-based code-generation framework. Generators produce XML matching the PLiX.xsd schema, which can be formatted into multiple languages. Extensible formatters support C# and VB.NET in Visual Studio 2005 and 2008
Yop is an object oriented persistence API generator.It supports various programming languages such as PHP5 and Java.The goal of this project is to provide an easiest and fastest way to deal with persistence by using a simple XML object description format
Safet is a library writing for C/C++ that use an xml file to model any workflow describe in a relational database, It includes drawing, statistics, document, resource and control workflow perspective.