Using the following function to learn what is after the trailing slash on my 404 page.

function explodeURL()
{
	$filename = $_SERVER['REQUEST_URI'];
	$breakfile = Explode('/', $filename);
	$pfile = $breakfile[count($breakfile) - 1];

	return $pfile;
}

$urlexplode = explodeURL();


how can break down the output if its something like

from_user=FROM-USER-HERE&to_user=TO_USER-HERE

I need to be able to get the FROM-USER-HERE and the TO-USER-HERE so I can pass them each through another function.