Error for non-integer payment amounts

I've had problems when customers pay a non-integer amount, say DKK 50,70. When the payment is registered and processed using the function unwire_amount, only the integer amount (DKK 50) is returned.

So I have changed this function:

  public static function unwire_amount($amount, $currency_info) {
    if (!is_array($currency_info)) {
      $currency_info = Quickpay::currency_info($currency_info);
    }
    return (function_exists('bcdiv') ?
        bcdiv($amount, $currency_info['multiplier']) :
        $amount / $currency_info['multiplier']);

  }

to:

  public static function unwire_amount($amount, $currency_info) {
    if (!is_array($currency_info)) {
      $currency_info = Quickpay::currency_info($currency_info);
    }
    return $amount / $currency_info['multiplier'];
  }

I am not sure about the idea of using the bcdiv function. But it does cause a problem so I suggest to remove it.

Am I missing something here?