I have an interesting issue. Our payment gateway vendor won't guarantee any characters except those on an English keyboard. I have people from Brazil (and other countries) submitting our form. I suspect most will be from Spanish or similar keyboards but I truly have no way of knowing. When someone submits ñ to our page, the server is handling it quite nicely. The response page is correct. The email I receive is correct. However the payment gateway vendor is receiving Ã?± instead.

Is there anything I can programatically do to fix this?

TIA
Mary

I assume by characters on an English keyboard they are referring to a particular set of ANSI character codes (which in theory they should be able to supply you with).

If you can get this then you can simply restrict the input fields to only allow these characters.