Nefarious Designs continues their object-oriented PHP series with part four posted today, a look at some of the new features that PHP5 brings to the table.

After a welcome break, over the late summer public holiday here in England, here's the final part in my object-oriented PHP series. Sorry about the rather extended pause since "Part 3: Taking Relationships Further".

Having already looked at definition, relationships and taking those relationships further, I'm going to look at how PHP5's new Object Model introduces more advanced functionality.

In this latest part they look at clas constants, abstract classes, object interfaces, and magic methods (including overloading).