TCLink

TCLink is a PHP module that processes credit card transactions through the TrustCommerce payment gateway. Features include: An easy-to-use interface; Encryption using SSL and trusted certificates; Fast transactions times (average about 1.2 secondse nd-to-end); and Fail-over to geographically distributed servers for extreme reliability. It is licensed under the LGPL. Full source code is included, as well as developer documentation and example PHP scripts.

TwoCheckout

TwoCheckout lets you build support for accepting payments via 2Checkout.com. You simply pass the order amount and invoice number to this script and it constructs the proper URL and redirects the visitor to the 2Checkout site. Also included is a basic sample "post-back" script which 2Checkout will post transaction notifications to.

VeriSignup

VeriSignup allows you to integrate Verisign's PayFlowLink credit card processing functionality right into your own website! Accept your customers' credit card information and securely post the transaction to Verisign in the background. Your customer never has to leave your site. Instantly know whether a transaction was approved or declined.

AuthorizeIt

AuthorizeIt allows you to integrate authorize.net's credit card processing functionality right into your own website. Accept your customers' credit card information and securely post the transaction to authorize.net in the background, without your customer ever leaving your site.

AIM Payment Bridge

This PHP script acts as a bridge between the purchaser and Authorize.Net Payment Gateway. The Advanced Integration Method (AIM) uses a direct secure sockets layer (SSL) connection to the Payment Gateway and is Authorize.Net's recommended connection method. AIM is also referred to by Authorizenet as ADC Direct Connection Method. AIM Payment Bridge includes Verification Code Support, MD5Hash Hash Support, and emails your order details when a successful transaction has been approved by Authorize.Net. It also dynamically creates your order form for you! If you have a few products to sell, you can do it quickly and easily with this script.

Commercial Interface For Authorize.net

Packaged as a PHP Class this script supports all the latest authorize.net features including: md5 crosscheck support for security; cvv2 card code validation; avs address validation; libcurl for total security; multiple transaction types; compound transactions (prior_auth, run func, capture); zend encoded and optimized for speed.

ECHO PHP Pay Form

An online payment processing order form to accept Credit Cards and Checks. Just Include ECHO PAYFORM in your secure website and you're ready to go. ECHO (www.echo-inc.com) merchant account required.

Check Credit Card Validity

This is a PHP script that allows you to check credit card data. It does not check if the credit card is valid, but checks whether the entered data matches the format of the specific credit card. Supported cards include: Visa, MasterCard, American Express, Diners, DiscoverCard, enRouteCard, JCBCard, etc.

ECHO-PHP Class

ECHO-PHP Class is a PHP class that drives all types of real-time credit card and check transactions using ECHO merchant processing’s free secure payment gateway and open-source real-time software. It supports system check, address verification, authorization and deposit, deposit, credit, commercial card, electronic check debit, and more. The ECHO-PHP Class makes it easier than ever to connect to ECHO using this popular server-side, cross-platform, HTML embedded scripting language. Ideal for all commerce applications. Perfect for ISP/IPPs to use for billing their clients, since it supports electronic checks as well.