What are some alternatives?
CodeIgniter - A Fully Baked PHP Framework
Django - The Web framework for perfectionists with deadlines
Yii Framework - Yii is a high-performance component-based PHP framework best for Web 2.0 development.
Symfony - A PHP full-stack web framework
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
CakePHP - The Rapid Development Framework for PHP