PHP Debugger Support

Describe your feature request
Please add PHP support to your debugger extension. As a possible consolation, can we use xdebug’s dbgpclient? It doesn’t appear available at nixos.org so unsure. Thanks for your consideration.

What problem(s) would this feature solve?
This would provide a far more robust debugging solution than attempting to inspect running application instance data using echo/var_dump/etc.

Explain what you were trying to do when you came across the problem leading to this feature request
I was running a Drupal instance and found there was no way to step through a running PHP script as one would JavaScript or Python files.