//Switch through the post of redirectType
     switch (strtolower($_POST['redirectType'])) {
         //If the redirectType is login.
         case "login":
             if (!empty($user)) {
                 new Customer($user);
                 header("Location: http://" . $_SERVER['SERVER_NAME'] . "/faseovergang/index.php");
             } else {
                 echo "Invalid credentials";
             }
             break;
             //If the redirectType is register.
         //If the redirectType is register.
         case "register":
             if (empty($user)) {
                 $db->addCustomer($_POST['username'], $_POST['password']);
                 header("Location: http://" . $_SERVER['SERVER_NAME'] . "/faseovergang/index.php?page=login");
             } else {
                 echo "There is already such user.";
             }
             break;
             //If there is a different variable given. This will prevent errors.
         //If there is a different variable given. This will prevent errors.
         default:
             echo "This page hasn't been found";
             break;
     }
     //Display the details of the customer
 } else {
     header("Location: http://" . $_SERVER['SERVER_NAME'] . "/faseovergang/index.php");
 }