<!doctype html>
<html lang="en">

<head>
  <title>Palindrome Tester</title>
</head>

<body>
  <h1>Palindrome Tester</h1>
  <form action="palindrome.php" method="post">
    <input type="text" name="input">
    <input type="submit">
  </form>
  <?php echo $output; ?>
</body>

</html>
