This library is intended to make it easy for you to get started with and to use Email Campaigner in your applications.
I find examples a great way to learn, so here's a couple for you (without the boilerplate)...
// Subscribe some lucky guy to our email list
$obj_client = new \Docnet\EMC\Client(EMC_API_KEY, EMC_API_SECRET);
$obj_client->subscribe('[email protected]');
Now let's unsubscribe him
// Bill changed his mind...
$obj_client = new \Docnet\EMC\Client(EMC_API_KEY, EMC_API_SECRET);
$obj_client->unsubscribe('[email protected]');
To install using composer, use this require line
"docnet/php-emc-client": "dev-master"