PHPCrystal is a modular full-stack Web application framework based on an event-driven model and several components of such well-known frameworks as Symfony and Zend. In addition, it ships with Twig and Doctrine as its default template engine and ORM/DBAL library respectively.

The goal of the framework is to provide Web developers with a tool allowing to implement customer's requirements in a clear and concise way.

The PHPCrystal framework is open-sourced software licensed under the MIT license