Qcodo
The QCodo Development Framework (http://www.qcodo.com) is an open-source PHP 5 framework which builds CRUD (Create, Retrieve, Update, Delete) UI pages, an Object Relational Model (ORM), AJAX hooks, and a form generation toolkit from an existing Data Model.
The framework consists of two main components: the Code Generator and Qforms. It is a lightweight framework which can be utilized by small and large web applications alike.
The framework is fundamentally different from other PHP frameworks such as CakePHP, the Zend Framework, and Symfony in that the ORM is pre-built and incurs no run-time reflection cost.
QCodo is mature, actively maintained, and has been deployed in production environements for NASA and other organizations. It's current release is Beta 3.1. The framework was concieved by Mike Ho, and his company QuasIdea acts as the central maintainer, providing new features & releases via the QCodo Website.
Demos and presentations are available at http://qcodo.com/demos/