solidMatter is a modular web application framework written in PHP. It focuses on an object-centric application design based on a modified, mostly JSR283-compliant JCR (Java Content Repository) as unified data storage with Web 2.0 capabilities.
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