if (!$this->check_table_exists('users')) {
            require_once 'users.sql.php';
            // Require SQL file
            try {
                $this->exec($sql1);
            } catch (PDOException $e) {
                if (DEBUG) {
                    echo $e->getMessage();
                }
                exit('Create Table Failed.');
            }
        } else {
            $existing[] = 'users';
            //    die('User table already exists!  Please remove the call to the method `create_user_table`.');
        }
        // Here to allow for multiple create tables testing
        if (count($existing) > 0) {
            foreach ($existing as $exists) {
                echo "<pre>Table `{$exists}` already exists!  Please remove the call to the method `create_user_table`.\n</pre>";
            }
            exit;
        }
        return true;
    }
}
$user = new userAuth();
//$user->create_user_table();
//$user->create_user('foo', 'bar');
var_dump($user->is_logged_in());
//$user->user_logout();
//var_dump($user->user_login('foo', 'bar'));