Ralph Schindler - Dynamic Assertions for Zend_Acl in ZF
Zend_Acl can now be used to make concise, dynamic and expressive ACL systems. The assertion system that is in place in Zend_Acl can be leveraged in ways never seen before out of the box. While the User/BlogPost example is on the simple side, you can use this article to start thinking about the different ways such a system can be leveraged in your own projects where dynamic assertions would simplify controller or model code that is already in place.