Reverse Engineer Php+html Files, Not Object Oriented Ones, To Produce A Diagram

What's a good tool to reverse engineer a set of php/html pages ? It's not object oriented, it's a big mess that started in early 2000 (so no UML tools obviously!). I'd like to draw

Solution 1:

You can use xdebug to generate a cachegrind file and then use Kcachegrind to view the diagram.