Mine

<?php
	$somecrap = '';
	if (!isset($_GET['input'])) 
	{
		$somecrap = "somecrap";
	}else{
		$somecrap = $_GET['input'];
	}
	$output = sha1($somecrap);
	print("<b>{$somecrap}</b> -> sha1 = <b>{$output}</b>");
?>