global keyword outside the function in php

Question

As we know, global keyword makes variable( or object, array) visible inside current function we are dealing with

Answer 1

Global keyword outside of functions does not do anything at all. but that file might be included within a function.

Another thing i use it not is to make my codes readable and more structured. any variable that i want to bo accessed using global keyword in a function, i declare it using global in the main file, so just a quick glance and i know that it is referenced somewhere as a global. (meaning don't rename anyhow as other is used somewhere else... :) )