Kumbia PHP Framework is a full-stack MVC framework written in PHP for developing database-backed web applications according to the Model-View-Control pattern and other patterns as ActiveRecord and TemplateView. Optimized for PHP programmer productivity.
Phraw is a micro-framework for PHP intended for small web sites and web applications. It is lightweight, flexible and fast.
It is very fast to learn and leverages Smarty as its template engine. It does not require a database and it is possible to change the template system.