Untitled

<!doctype html>
<html>
	<head>
		<title>Word Permutations</title>
	</head>
	<body>
		<h1>Word permutations galore</h1>
		<?php
			$string = $_GET["string"];
			permutation("", $string);
			$count = 0;

			function permutation($pre, $str) {
				$n = strlen($str);
				if (n == 0) {
					print "<p>" . $pre . "</p>";
					$count++;
				} else {
					for ($i = 0; $i < $n; ++$i) {
						//permutation(prefix + str.charAt(i), str.substring(0, i) + str.substring(i+1, n));
						permutation($pre . $str[$i], $str.substr(0, $i) . $str.substr($i + 1));
					}
				}

				return $p;
			}

			print "<p>All combinations of " . $string . ":";
			print "There are " . $count . " permutations of " . $string . ".";
		?>
		<script type="text/javascript" src="script.js"></script>
	</body>
</html>