test

webapp/index.php

 <?php session_start();
 include('../api.class.php');
+if(isset($_GET["logoff"])){
+	unset($_SESSION);
+	unset($_COOKIE);
+	session_abort();
+}
 // Anmeldung übeprüfen...
 if((isset($_SESSION['api-key']) OR (isset($_COOKIE['api-key']) AND isset($_COOKIE['api-secret'])))){
 	$dologin = false;
@@ -69,7 +74,7 @@ License URL: http://creativecommons.org/licenses/by/3.0/
 			<div class="col-sm-3 header_right">
 			   <ul class="header_right_box">
 				 <!--  <li><img src="images/p1.png" alt=""/></li>-->
-				 <li><p><?php echo $_SESSION['api-key']; ?></p></li>
+				 <li><p><a href="index.php?logoff">Abmelden</a></p></li>
 				 <!-- <li class="last"><i class="edit"> </i></li> -->
 				 <div class="clearfix"> </div>
 			   </ul>