public function unsubscribe($id)
{
$browser = new Browser();
$userbrowser = $browser->getBrowser() . ' ' . $browser->getVersion();
$userplatform = $browser->getPlatform();
$userIP = $_SERVER["REMOTE_ADDR"];
$tracker = Tracker::find($id);
$tracker->unsubscribed = 1;
if ($tracker->IP_address == '') {
$tracker->IP_address = $userIP;
}
if ($tracker->browser == '') {
$tracker->browser = $userbrowser;
}
if ($tracker->platform == '') {
$tracker->platform = $userplatform;
}
if ($tracker->read == 0) {
$tracker->read = 1;
}
if ($tracker->read_at == '0000-00-00 00:00:00') {
$tracker->read_at = new Datetime();
}
$tracker->save();
$sub_id = $tracker->subscriber_id;
$subscriber = Subscriber::find($sub_id);
$subscriber->active = 0;
$subscriber->save();
echo "You have been successfully unsubscribed.";
}
