Aspects In Codeigniter

[eluser]robert.fulcher[/eluser]
I want to implement the ability to do aspects (or something close to it) in my codeigniter project. Can someone tell me how I might be able to do this. I want to use this for putting logging and notifications into my project. I don't want to scatter the code around the project. I was hoping that somewhere there was a gateway that always gets called in CI and I can then evaluate the class and property being called.

Thanks