iTransact payment gateway integration with php

iTransact is a 20 year old, full service payment processing company powered by the largest processors on the planet servicing millions, while at the same time providing personal, world-class customer support and assistance. iTransact’s end-to-end merchant solutions include mobile, internet, as well as traditional retail services from virtually any legitimate industry within the United States. Other offerings include custom gateway services with access to a virtual terminal, recurring billing, all types of equipment and point of sale solutions, Applepay, EMV, electronic check and ACH services, and much more.

For more details click here - http://itransact.com

In this tutorial we will learn how to integrate  PHP application with iTransact payment gateway.

First, download gateway library from here -

Name	Url
itransact/api_examples	https://github.com/itransact/api_examples/tree/master/php_xml

Basic Requirements

Title	Description
Payment gateway login details	To control the payment gateway.
Api key and api username	These are the secret credentials to integrate the payment gateway with php or other languages
Library files	The itransact provides php library files.
A form to get the details from the customer	A form should be there to be filled by the user if they want to make any trasaction with the details they filled.

Process to integrate payment gateway with wordpress:

1.      Create a php file with a form to get the details from customers and for processing by gateway.

2.      User will add his basic details, billing address details, card details and go for submit.

3.      Form must be validated.

4.      If fields are filled means then credit card details would be strictly checked whether user enters the test credit card details or any wrong card number or card type.

5.      By getting the result valid or error from point 4, the gateway integration starts by including library files.

 FOR EXAMPLE:

require_once( get_template_directory() . '/paymentgateway/XMLRequest.php' );

require_once( get_template_directory() . '/paymentgateway/XMLResponse.php' );

require_once( get_template_directory() . '/paymentgateway/CardAuthRequest.php' );

6.      Payment gateway library checks whether the given entries are genuine or not and it generates a xml and payload signature as a request.

  $xml_request = new CardAuthRequest($fields);

  $xml = $xml_request->toXML();

7.      Send the request xml generated from point 6 on https://secure.paymentclearing.com/cgi-bin/rc/xmltrans2.cgi using gateway function.

$response = $xml_request->submit("https://secure.paymentclearing.com/cgi-bin/rc/xmltrans2.cgi", $xml);

This is the phase where payment transaction occurs.

8.   It produces a flag/status which can have two values either it can be “ok” or “error”. If it is “ok” means payment is successful else it is failed.

9.    Based on the result of transaction success page or error page can be set.

For any queries gateway ticket submission url -

: http://itransact.helpserve.com/Tickets/Submit/RenderForm