A function which simulates the register_globals setting from PHP <=5.3 for PHP >=5.4

register_globals.php

<?php
/* A function which simulates the register_globals setting from PHP <=5.3 for PHP >=5.4
 * Blasphemy I know. Just an example of named functions detailed in https://php.net/manual/en/language.variables.variable.php
 */
function register_globals($Order = 'EGPCS')
{
	$register_globals = function(array &$GlobalArray)
	{
		foreach($GlobalArray as $Variable=>$Value)
		{
			global $$Variable;
			
			$$Variable = $Value;
		}
	};
	
	for($x=0;$x<5;$x++)
	{
		switch(strtoupper(substr($Order,$x,1))) {
			
			case 'E':
				$register_globals($_ENV);
				break;
				
			case 'G':
				$register_globals($_GET);
				break;
			
			case 'P':
			
				$register_globals($_POST);
				break;
			
			case 'C':
			
				$register_globals($_COOKIE);
				break;
			
			case 'S':
				$register_globals($_SERVER);
				break;
			
		}
	}
}

register_globals();