I am new to overloading, just read up about it and I think I understand it. I had a question concerning overloading now that wasn't answered in the manual.

When and where should I use overloading?

I know there is probably limitless answers, so I will try to generalize this. Are there certain scripts you've found benefit more from overloading or written anything that you've prefered overloading? Also, if you could work around overloading, does overloading cause any speed difference?

I think SimpleXML uses overloading ( if it's entirely PHP that is ), where you can access all your XML as object properties ( correct me if I am wrong ).

I am working on a CMS I am going to use for some hobby sites, and was thinking about implementing it on a few things. First would be with registered users information. I already assign their data when they login into an object, but thought for reasons of future extendability, if I used overloading I could access any new properties without needing to touch the code at all.

Thanks for any feedback on this subject.