This may help with the specific formats. (And how to calculate the check
digit yourself to verify)
http://www.beachnet.com/~hstiles/cardtype.html
Jaime Bozza
-----Original Message-----
From: Kristopher Yates [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 23, 2002 1:42 PM
To: [EMAIL PROTECTED]
Subject: Re: [PHP] 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" <[EMAIL PROTECTED]> wrote in message
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
>
>>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" <[EMAIL PROTECTED]>
>>>Date: Tue, 23 Jul 2002 12:09:48 -0600
>>>To: [EMAIL PROTECTED]
>>>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
>>>
>>>
>>>
>
>
>
>
>
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
