public function getTelefon() {
        try {
            $dsn = 'mysql:host=utb-mysql.du.se;dbname=db06';
            $username = 'db06';
            $password = 'Oy9CkDSJ';
            $pdocon = new PDO($dsn, $username, $password);
            $pdoStatement = $pdocon->prepare("");
            $pdoStatement->execute();
            $vara = $pdoStatement->fetchAll();
            return $vara;
        } catch (Exception $ex) {
            $pdocon = NULL;
        }
    }