[kh99]

I'm not sure what you mean by that. In any case I was being a bit lazy because of course it's possible to find where that function is called, but in this case a search finds 6 calls to that function, and they are in classes which means you next have to find where those classes are created and which method calls (or whatever they're called in php) result in fetch_sql_ids_specific() being called.

Another way would be to temporarily edit that file and put in code that checks for the parameters you're looking for and calls debug_backtrace() to get the call stack. Then you'd have to output it in some way (I usually create a file and write out the output, but I know there can be permission problems trying to do that depending on who your server is set up).