Purpose of PHP Debug Pack

Question

There is a debug pack listed under downloads on the official php site.

Is it intended for developers of the php core/runtime and therefore to debug php itself? Or is it intended for the general php site developer audience and thus to debug *.php files on your website (using xdebug etc)?

Answer 1

As explained here it's for developers of PHP.

I believe it allows you to hook in a debugger for the purpose of hunting down bugs and/or it dumps debugging information when something goes awry. For most bugs, you can just provide a piece of code to reproduce the problem so most bugs do not need that kind of attention.