gistfile1.php

<?php // BRAD
	$numbers = array("1", "2", "3", "4", "5");

	function array_print($values) {
		$array = array_reverse($values);
		print_values($array);
	}

	function print_values($array) {
		echo array_pop($array);

		if(empty($array)) {
			print_values($array);
		}
	}

	array_print($numbers);
?>

<?php // TJ
	$numbers = array("1", "2", "3", "4", "5");
	a:
		if (empty($numbers)) exit("Done.");
			echo array_pop($numbers);
			goto a;
?>

<?php // BRAD

	if($_GET['array']) {
		$array = unserialize($_GET['array']);
	} else {
		$array = array("1", "2", "3", "4", "5");
	}
	
	if($_GET['string']) {
		$string = unserialize($_GET['string']);
	} else {
		$string = "";
	}
	
	if($_GET['current']) {
		$current = $_GET['current'];
	} else {
		$current = 0;
	}
	
	if($_GET['stop']) {
		$stop = $_GET['stop'];
	} else {
		$stop = count($array) - 1;
	}
	
	if($current <= $stop) {
		$string .= "{$array[$current]} ";
		$current += 1;
		
		$array_serialized = serialize($array);
		$string_serialized = serialize($string);
		
		header("Location: {$_SERVER['PHP_SELF']}?array=$array_serialized&string=$string_serialized&current=$current&stop=$stop");
	} else {
		echo $string;
	}
?>