Those of you looking to take steps towards MVC development with PHP may want to take a look at the following tutorial I found linked from nettuts: CodeIgniter and Doctrine from scratch.Day 1 – Install and Setup. | PHP and Stuff It details how to integrate Doctrine which is a database ORM much like ActiveRecord is in Ruby on Rails to the CodeIgniter MVC framework. Doctrine thereby replaces the M part of the CodeIgniter stack. From my reading around Doctrine appears to be one of (if not) the best ORM libraries for PHP at the moment. Enjoy!