Virtuemart Paypal Currency Problem

Virtuemart has a multiple currency feature where users can select from a pre-defined set of currencies for checkout.

This is very useful, but has a major bug when checking out with Paypal. The final order logged in Virtuemart is correct, and has the correct currency. However, when the user is redirected to Paypal, the transaction will be done in the default currency of the Virtuemart shop.

This problem has existed since 2009, and in 2011 I would have expected it to be resolved already.

I would class this as a major problem as it results in incorrect transactions.

Forunately, the fix is relatively simple. From the Virtuemart administrator, go to List Payment Methods. Click on the Paypal item and go to the Configuration tab. Add this code to the top of the file, just after the opening php tag.

$currencysymbol = "";
if ($_SESSION['product_currency'] == "EUR" )
      {
      $currencysymbol = "EUR";
      }
elseif ($_SESSION['product_currency'] == "GBP" )
      {
      $currencysymbol = "GBP";
      }
else
{$currencysymbol = "USD";}

and then find the line:

"currency_code" => $_SESSION['vendor_currency'],

and change to:

"currency_code" => $currencysymbol,