require('ET_Client.php');
$myclient = new ET_Client();
$subscriber = new ET_Subscriber();
$subscriber->authStub = $myclient;
$subscriber->props = array("EmailAddress" => "example@example.com", "SubscriberKey" => "SDKSubscriber");
$subscriber->props['Attributes'] = array(array('Name' => 'First Name', 'Value' => 'ExactTarget Example'));
$results = $subscriber->post();
print_r($results);