Re: Credit card checks?

You should contact Visa International Service Association to determine what constitues a "valid" credit card number. Just FYI, a valid format is 16 digits; aaaa-bbbb-cccc-dddd. I believe VISA normally begins with "41" as the first two digits, however, I am not a Visa Int. agent but I am a client. Ultimately, you would need a merchant account to verify its validity, AFTER you have verified its format for accuracy. HTH Kris Jas wrote:

Yeah, I have looked at that class file and I don't want someone elses example to use, I want to build my own but have no way of knowing what makes up a valid visa number etc.... Jas "Richard Baskett" <php@baskettcase.com> wrote in message news:B962EBBF.C22F%php@baskettcase.com...

Try this: http://www.AnalysisAndSolutions.com/code/ccvs-ph.htm Rick A sense of humor can help you over look the unattractive, tolerate the unpleasant, cope with the unexpected, and smile through the unbearable. - Moshe Waldoks

From: "Jas" <jlgerfen@hotmail.com> Date: Tue, 23 Jul 2002 12:09:48 -0600 To: php-general@lists.php.net Subject: [PHP] Credit card checks? Just wondering if anyone has come across the need to develop a class to

test

a string of numbers based on a credit card type. If you have where

would I

be able to get information on what string of numbers is consistent with

each

of the different credit cards? Any help would be appreciated! Jas -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php