For my custom debugging system i need a full trace including full variable & return content.

But adding this for all functions will cause the logs to grow so large that parsing them will become (too) slow.

so i'd like to propose adding a few parameters somewhere (preferably also in xdebug_start_trace());

• whitelist of classes to include in a log (so excluding all others)
• blacklist of classes not to include in a log
• whitelist of functions to include in a log (so excluding all others)
• blacklist of functions not to include in a log
  (if a whitelist is set, the blacklist is irrelevant, imo)

It would be great if you could also add a function that returns which classes and functions are in a given php file.
I'm willing to write this last one (in php), if you're interested in adding these white- & blacklists.