$curl = curl_init();
	curl_setopt($curl, CURLOPT_URL, "https://trackcmp.net/event");
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($curl, CURLOPT_POST, true);
	curl_setopt($curl, CURLOPT_POSTFIELDS, array(
	"actid" => "67381782",
	"key" => "880ac3578c0c5a24288a6cc3561cd3245b145479",
	"event" => "YOUR_EVENT",
	"eventdata" => "ANY_DATA",
	"visit" => json_encode(array(
			// If you have an email address, assign it here.
			"email" => "",
		)),
	));

	$result = curl_exec($curl);
	if ($result !== false) {
		$result = json_decode($result);
		if ($result->success) {
			echo 'Success! ';
		} else {
			echo 'Error! ';
		}

		echo $result->message;
	} else {
		echo 'cURL failed to run: ', curl_error($curl);
	}