you can visit www.phpdebug.com from where you can get informations about php debugger, which can debug php program using some methods, such as Step, Goto, Run, and can view/set/modify variable's value, and can watch variables in watch window!
why this place requires password ?!?!?
There are lots of links but none of them have anything to do with php debugger. Which begs the question why have a domain phpdebugger.com if you have no contents about php or dbigging??