logout.php

<?php

/*
 * Copyright 2015 NACOSS UNN Developers Group (NDG).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

require_once 'class_lib.php';
$user = new User();
if ($user->logoutUser()) {
    $url = filter_input(INPUT_GET, "url");
    header("Location: " . urldecode($url));
} else {
    echo '<h1>Server error<h1>';
}