Redsys PHP bindings

This unofficial Redsys PHP library provides convenient access to the Redsys API from applications written in the PHP language.

Requirements

PHP 5.6.0 and later.

Composer

You can install the library via Composer. Run the following command:

composer require vguerrerobosch/redsys-php

Manual Installation

If you do not wish to use Composer, you can download the latest release. Then, to use the bindings, include the init.php file.

require_once('/path/to/redsys-php/init.php');

Getting Started

Payment Requests

You can create a payment request

use Vguerrerobosch\Redsys\Redsys;
use Vguerrerobosch\Redsys\PaymentRequest;

Redsys::setApiKey('sq7HjrUOBfKmC576ILgskD5srU870gJ7');

$payment_request = PaymentRequest::create([
    'amount' => 2000,
    'order' => time(),
    'merchant_code' => 999008881,
    'merchant_url' => 'https://941a2b9e.ngrok.io/webhook',
    'url_ok' => 'http://redsys-php.test/ok',
    'url_ko' => 'http://redsys-php.test/ko',
]);

then you can build the form like:

$sumbit_onload = false; // default true

$payment_request->form($submit_onload);

or you may access the properties directly:

$payment_request->url; // the Redsys endpoint
$payment_request->params; // the encoded parameters
$payment_request->signature; // the calculated signature
$payment_request->signature_version // currently HMAC_SHA256_V1

Handling webhooks

The very first thing should be verifing the signature of the request:

use Vguerrerobosch\Redsys\Webhook as Webhook;
use Vguerrerobosch\Redsys\Exception\SignatureVerificationException;

$content_type = $_SERVER['CONTENT_TYPE'];

Webhook::setContentType($content_type); // defaults to application/x-www-form-urlencoded

$payload = $content_type == 'application/x-www-form-urlencoded' ?
    $_POST :
    @file_get_contents('php://input');

$secret_key = 'sq7HjrUOBfKmC576ILgskD5srU870gJ7';

try {
    Webhook::verifySignature($payload, $secret_key);
} catch (SignatureVerificationException $exception) {
    http_response_code(403);
    die;
}

then get the data from the response payload and update the order status on your database or whatever needs to be done.

$data = Webhook::getData($payload);

and finally return the response (required for SOAP)

echo Webhook::response($order_id, $secret_key);
die;

Testing

Test card numbers

Genuine card information cannot be used in test mode. Instead, use the following test card numbers, a valid expiration date in the future, and any random CVC number, to create a successful payment.

Card number	Description
4548 8120 4940 0004	Visa charge succeeded.
5576 4400 2278 8500	MasterCard charge is declined with 9551 response code.