In this recent post to his blog Benjamin Eberlei talks about the combination of the dependency injection functionality the Symfony framework offers and the Zend_Application component of the Zend Framework and how to make them play well together.

As a follow-up to my recent post on Dependency Injection containers and Zend_Application I was eager to find out if its possible to integrate the new Symfony Dependency Injection Container into the Zend Framework. To my suprise its possible without having to make any changes to one of the two components.

His example use case shows the Zend_Application object being used to add a sfServiceContainer via a setContainer call. There is one strange issue in the integration, though - the Symfony container is case-sensitive for the service names but the Zend Framework makes them all lower-case.