CAS_example.php

<?php
ini_set('display_errors', true);
error_reporting(E_ALL);
chdir(dirname(__FILE__).'/../../');
require_once 'UNL/Auth.php';

$auth = UNL_Auth::factory('CAS');

if (isset($_GET['login'])) {
	$auth->login();
} elseif (isset($_GET['logout'])) {
	$auth->logout();
}

if (!$auth->isLoggedIn()) {
    // Could call $auth->login() here to get the party started.
	echo "You are not logged in.\n<br />\n";
	echo '<a href="?login=true">Click here to log in!</a>';
} else {
	echo "You are logged in as {$auth->getUser()}<br />";
	echo "<a href='?logout'>logout</a>";
}