RE: [PHP] Credit Card Validation

Check Out Credit Card validation routine. Uses MOD 10 to check if credit card number is valid. http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=74 Validating Credit Card Numbers Without Bank Involvement http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=333 A set of functions to check the validity of a credit card number. http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=458 After discovering some credit card validation routines didn't work - here is one that I found works with all the numbers I have tried so far http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=505 Validation function for LUHNMod10 and variant. Can discriminate credit card numbers of varying lengths. Uses [Double >> Sum-of-Digits] transform. http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=1463 Credit Card Identification and Validation Class - The credit card class provides methods for cleaning, validating and identifying the type of credit card numbers. http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=1805 Real-Time Transaction Processing PHP Class. Credit Cards & Checks. Supports system check, address verification, authorization and deposit, deposit, credit, commercial card, electronic check debit, and more. http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=3107 ECHO-PHP Class Real Time Transaction Processor v1.4.4 for Credit Cards and Checks / ACH http://www.weberdev.com/index.php3?GoTo=get_example.php3?count=3190 Sincerely berber Visit http://www.weberdev.com/ Today!!! To see where PHP might take you tomorrow. -----Original Message----- From: Jeff Lewis [mailto:jeff@hyrum.net] Sent: Saturday, September 07, 2002 11:03 PM To: php-general@lists.php.net Subject: [PHP] Credit Card Validation I know it's been posted here several times and I've looked through the archives but I just need something very simple for this. I have a form that already takes in user information but now before accepting the information, I'd like to pass the credit card information to a function and return true or false. Is anyone using something like this that is simple? Jeff