is there any plugin or other stuff to know in which function I am currently in?
For example: let’s say I have a function called my_long_function($arg1, $arg2) 400 lines of code long; I’m in the middle of it (so I can’t actually see the name): is it possible to display the name?
Look at this plugin:
If your functions are 400 lines long, this appears like it can help. You may want to refactor some code though, so as to not have such long functions.