Jurian Sluiman has a new post to his site showing how to use the service managers in your Zend Framework v2 applications.
Zend Framework 2 uses a ServiceManager component (in short, SM) to easily apply inversion of control. I notice there are good resources about the background of service managers (I recommend this blog post from Evan or this post from Reese Wilson) but many people still have problems to tune the SM to their needs. In this post I will try to explain the reason why the framework uses multiple service managers and how you can use these.
He talks about the different service managers that are available in the framework, why they're used, how they relate to the service locator and how you can define/fetch your own services in them. He includes some basic configuration code and compares the behavior of the root service manager to the others (application services, controllers, view helpers, etc).