Usage is pretty simple.

// Get a instance of the API (while passing in your apikey)
$aptgraph = new Aptgraph('Bc9dsdjhJHhdsf&54s34cv49Kfasducv7');

// Add a couple of random values to this graph, then send it to Aptgraph
// Note that 8jspy is this graphs id.
$aptgraph
	->add('8jspy',rand(1,1000))
	->add('8jspy',rand(1,1000))
	->add('8jspy',rand(1,1000))
	->send();

See Aptgraph for more details