ChargeIO PHP Client Library

Download the PHP client library by doing the following:

git clone git://github.com/charge-io/chargeio-php.git

To use the library in your application, add the following to your PHP script:

require_once '/path/to/chargeio-php/lib/ChargeIO.php';

The library's APIs require credentials to access your merchant data on the ChargeIO servers. You can provide credentials as arguments to the APIs used to retrieve objects, or you can configure the library with default credentials to use when necessary. To set the default credentials, substitute your ChargeIO public key and test or live-mode secret key in a call to setCredentials:

ChargeIO::setCredentials(new ChargeIO_Credentials('<public_key>', '<secret_key>'));

Once your credentials are set, running a basic credit card charge looks like:

$card = new ChargeIO_Card(array('number' => '4242424242424242', 'exp_month' => 10, 'exp_year' => '2016'));
$charge = ChargeIO_Charge::create($card, 1200);

Using the ChargeIO.js library for payment tokenization support on your payment page simplifies the process even more. Just configure the token callback on your page to POST the token ID you receive to your PHP script and then perform the charge:

$amount = $_POST['amount'];
$token_id = $_POST['token_id'];
$charge = ChargeIO_Charge::create(new ChargeIO_PaymentMethodReference(array('id' => $token_id)), $amount);

The latest ChargeIO API documentation is available at https://chargeio.com/developers.