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Title : After discovering some credit card validation routines didnt work - here is one that I found works with all the numbers I have tried so far
Categories : Credit Cards, Ecommerce, PHP Update Picture
John Craig
Date : Mar 02nd 1999
Grade : 4 of 5 (graded 2 times)
Viewed : 13443
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function CC_checksum($ccard){
if(strlen($ccard) < 1)
return 0;
$ccard = ereg_replace("[^[:digit:]]+", "", $ccard);
$checksum = 0;
$factor = (strlen($ccard) % 2) ? 1 : 2;
for($i = 0; $i < strlen($ccard); $i++){
$digit = substr($ccard, $i, 1);
$checksum += ($digit * $factor > 9) ? $digit * $factor - 9 : $digit * $factor;
$factor = ($factor == 1) ? 2 : 1;
}
return !($checksum % 10);
}



credit card security code
Categories : PHP, Credit Cards, PHP Classes, Credit Cards
A set of functions to check the validity of a credit card number.
Categories : Ecommerce, Credit Cards, PHP
Credit Card validation routine. Uses MOD 10 to check if credit card number is valid.
Categories : Ecommerce, Credit Cards, PHP, Complete Programs
Credit Card Identification and Validation Class - The credit_card class provides methods for cleaning, validating and identifying the type of credit card numbers.
Categories : PHP, PHP Classes, Credit Cards, Ecommerce, Algorithms
an example of the cyberlib payment class
Categories : PHP, PHP Classes, Ecommerce, Credit Cards
ECHOcart - Open Source Shopping Cart
Categories : PHP, Credit Cards, Ecommerce
Validation function for LUHNMod10 and variant. Can discriminate credit card numbers of varying lengths. Uses [Double >> Sum-of-Digits] transform.
Categories : Credit Cards, Authentication, Ecommerce, PHP
PCAC (pretty cool auction client), auction client server applications
Categories : PHP, MySQL, Ecommerce
Amazon.com API, CURL-REST Parser. Obtain data about Amazon products (PHP5 +)
Categories : PHP, Ecommerce, XML, Web Services, CURL
How to validate an Israeli ID number.
Categories : Ecommerce, PHP, Algorithms
open source online php shop project ecommerce commerce
Categories : PHP, Ecommerce
Adds dashes to a CC number. Was from this site, but now it works.
Categories : PHP, Credit Cards
Barcodes On The Fly With GD
Categories : Ecommerce, Graphics, HTML and PHP, PHP
PHPCatalog
Categories : Ecommerce, PHP, Complete Programs
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.
Categories : PHP Classes, OpenSSL, Credit Cards, Ecommerce, Verisign Payflow Pro