Hey guys (and gals), I am sure this has been asked many times before, but I couldn't seem to find a recent PHP4-based thread in the logs at phpbuilder.com; so either I'm incompetent or it doesn't exist.
My question is pretty obvious, I was wondering what the process for validating a credit cards with both preprocessing by the form to determine the pattern validity and post processing by a bank to confirm the actual card validity. Your help would be greatly appreciated. Best Wishes, Nathan Taylor
