Shift4 PHP Library

If you don't already have Shift4 account you can create it here.

Installation

Composer

Best way to use this library is via Composer.

composer require shift4/shift4-php

Then to use the library, you can use Composer's autoloader:

require_once('vendor/autoload.php');

Manual installation

If you don't want to use Composer then you can download the latest release.

Then to use the library, you can either configure your autoloader to load classes from the lib/ directory or use included autoloader:

 require_once 'lib/Shift4/Util/Shift4Autoloader.php';
 \Shift4\Util\Shift4Autoloader::register();

Quick start example

use Shift4\Shift4Gateway;
use Shift4\Exception\Shift4Exception;

$gateway = new Shift4Gateway('sk_test_[YOUR_SECRET_KEY]');

$request = [
    'amount' => 499,
    'currency' => 'EUR',
    'card' => [
        'number' => '4242424242424242',
        'expMonth' => 11,
        'expYear' => 2022
    ]
];

try {
    $charge = $gateway->createCharge($request);

    // do something with charge object - see https://dev.shift4.com/docs/api#charge-object
    $chargeId = $charge->getId();

} catch (Shift4Exception $e) {
    // handle error response - see https://dev.shift4.com/docs/api#error-object
    $errorType = $e->getType();
    $errorCode = $e->getCode();
    $errorMessage = $e->getMessage();
}

Documentation

For further information, please refer to our official documentation at https://dev.shift4.com/docs.