Here’s an example of how to get use `getCustomerProfile()` with authorize.net:
// define your api key and do your include
define(‘AUTHORIZENET_API_LOGIN_ID’, ‘xxxxx’);
define(‘AUTHORIZENET_TRANSACTION_KEY’, ‘xxxxxxx’);
// include the sdk
require_once(‘/lib/AuthorizeNet.php’);
// now make the request
$request = new AuthorizeNetCIM;
$response = $request->getCustomerProfile($customerProfileId);
You will have a nice XML (or SOAP) response that you can parse and use the data from.