Check for localhost supports also IPv6 loopback address

index.php

@@ -18,7 +18,7 @@ $options = array(
  *
  * Source on Github http://github.com/Seldaek/php-console
  */
-if ($_SERVER['REMOTE_ADDR'] != '127.0.0.1') {
+if (!in_array($_SERVER['REMOTE_ADDR'], array('127.0.0.1', '::1'), true)) {
     header('HTTP/1.1 401 Access unauthorized');
     die('ERR/401 Go Away');
 }
@@ -108,4 +108,4 @@ if (isset($_POST['code'])) {
             php-console v<?php echo PHP_CONSOLE_VERSION ?> - by <a href="http://seld.be/">Jordi Boggiano</a> - <a href="http://github.com/Seldaek/php-console">sources on github</a>
         </div>
     </body>
-</html>
+</html>