How can I disable PHP's “easter egg” URLs?

Question

I recently found out about the so-called \"easter egg URLs\" in PHP:

These are the four QUERY strings you can add to the end of a PHP web page to view

Answer 1

in php.ini

; Decides whether PHP may expose the fact that it is installed on the server
; (e.g. by adding its signature to the Web server header).  It is no security
; threat in any way, but it makes it possible to determine whether you use PHP
; on your server or not.
; http://php.net/expose-php
 expose_php = Off

This will effectively remove the easter eggs