$domain = 'your-subdomain'; // https://your-subdomain.freshbooks.com/
$token = '1234567890'; // your api token found in your account
Freshbooks\FreshBooksApi::init($domain, $token); 

$domain = 'your-subdomain'; // https://your-subdomain.freshbooks.com/
$token = '1234567890'; // your api token found in your account
$fb = new Freshbooks\FreshBooksApi($domain, $token); 

// Method names are the same as found on the freshbooks API
// Statically
$fb = new Freshbooks\FreshBooksApi('client.list');
// Or 
$fb->setMethod('client.list');

// For complete list of arguments see FreshBooks docs at http://developers.freshbooks.com
$fb->post(array(
    'email' => '[email protected]'
));

$fb->request();

if($fb->success()) {
	echo 'successful! the full response is in an array below';
	var_dump($fb->getResponse());
} else {
	echo $fb->getError();
	var_dump($fb->getResponse());
}