Is there a good debugging library out there?

[eluser]Majd Taby[/eluser]
Hey, I'm wondering if you guys knew of a good debugging script. I am specifically looking for one library that would help me manage errors ( php4 doesn't handle exceptions ), a way for it to email me those errors, a way for it to hide any application errors and display just a simple one. A way to add breakpoints (in code, not in the editor ).. you know, the like.

I think that would be very helpful when debugging. If there isn't anything like it (i can't find anything), i'll just build one, but I don't want to re-invent the wheel.

Thanks!

[eluser]Vik[/eluser]
Have a look at Zend Studio, from Zend Technologies. It provides an IDE (integrated development environment) with breakpoints, the ability to see all the contents of all your variables, etc.

[eluser]Majd Taby[/eluser]
Yeah, But i really don't like zend, plus, a ton of people don't use it.