devReview()

xajax is an open source PHP libary for building Web-based Ajax applications.

PHOCOA is a PHP framework for developing web applications.

Cough is an extremely lightweight PHP ORM framework for dealing with objects that have single table counterparts in a database.

LightVC is a lightweight model-view-controller (MVC) framework without the model.

LGPL licensed framework for PHP4 and PHP5

Tangra is a LGPL licensed open source framework for development of PHP5 applications.

PHP framework for evolved applications

Xataface is a framework for building data-driven applications with PHP and MySQL.

Tigermouse is a modern web applications framework for PHP.

PHP WebApp Framework