phpPatterns.com has a diagram of something that just might clear a few things up for those DOM XML parsers out there wondering why it does what it does.

In this diagram, you can get a better idea of how the DOM extension works with PHP to parse the XML you throw at it. Though, it is worth mentioning that this outline is only a guess at how it all is laid out. There might be some variances in the actual paths along the way.

At some point I may get round to making the UML diagram above complete but if anyone else wants to have a go, the DOMXML source code is here. I've put the .zargo file up here for the above diagram which can be edited with Posideon UML or ArgoUML. Any updates appreciated.