Doctrine, PHP Object
Relational Mapper
Doctrine 1 http://www.doctrine-project.org

What is Doctrine?
‣ Doctrine is a Object Relational Mapper built
to work with PHP 5.2.3 or greater.
‣ Primarily based off of Java Hibernate
‣ Influenced by Ruby on Rails ActiveRecord
From WikiPedia: http://en.wikipedia.org/wiki/Object-
relational_mapping
Doctrine 2 http://www.doctrine-project.org

The Layers
Doctrine 3 http://www.doctrine-project.org

Why should I use it?
‣ Makes difficult problems easy
Because
jwage said
‣ Saves money so!!!
‣ I like money
Doctrine 4 http://www.doctrine-project.org