[thelist] Credit card validation

Charles F. Johnson charles at littlegreenfootballs.com
Sat May 26 12:52:14 CDT 2001

Mark Groen <markgroen at telus.net> typed:

> An overview of the basics of credit card verification:
> http://www.webdevelopersjournal.com/articles/card_fraud.html
> There's quite a few php scripts out there I think for simply verifying the
> numbers - an example:
> http://php.resourceindex.com/detail/00597.html
> You can make sure it is a well formed number client side also with
> javascript:
> http://javascript.internet.com/forms/val-credit-card.html

Thanks, Mark; but we need to do more than simply run the LUHN algorithm. I
guess what I'm looking for is information about connecting to a payment
service like Cybercash or authorize.net, using our own hand-rolled script
instead of a pre-packaged shopping cart.

charles johnson
lgf web design

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