Revert_Array_Layout_2 will use fast memmory without freeing it when done (result hanging machine, out of memmory)

Revert_Array_Layout_3 is the same as *_2 and will not use the memmory

i guess you can figure out where's the bug (list or each i think)

P.S Make the array bigger and you will crash faster :)

<?
	function Revert_Array_Layout_2 ($wico) {
		while (list($key, $value) = each($wico)) {
			$revert[$value] = $key;
		}
		return($revert);
	}

	function Revert_Array_Layout_3 ($wico) {
		$total = count($wico);
		for ($x = 0; $x < $total; $x++) {
			$revert[$wico[$x]] = $x;
		}
		return($revert);
	}

	function Get_Unique_Array_Values_2($wico) {
		return(Revert_Array_Layout_2(Revert_Array_Layout_2($wico)));
	}

	for ($y = 0; $y < 100000; $y++) {
		unset($wico);
	   for ($x = 0; $x < 20; $x++) {
	   	$wico[$x] = "$x";
	   	$wico[$x + 1] = "$x";
	   	$x++;
	   }
	   $temp = Get_Unique_Array_Values_2($wico);
	}

?>