MD5 generator

<?php

if(isset($_POST['submit']))
{

$encoded=md5(trim($_POST['input']));

if($_POST['input'] && strlen($_POST['input']) > 0){

echo '<div class="message"><b>MD5 HASH:</b> '.$encoded.'</div>';

}else{

echo '<div class="message"><b>Error:</b> Empty Input</div>';

}

}

?>