Paranoia\Payment\Adapter\AdapterAbstract::formatExpireDate PHP Method

formats expire date as month/year

protected formatExpireDate ( integer $month, integer $year ) : string
$month	integer
$year	integer
return	string

    protected function formatExpireDate($month, $year)
    {
        return sprintf('%02s/%04s', $month, $year);
    }

AdapterAbstract