/** * @param AdminEvent $event */ public function onSettingsChange(AdminEvent $event) { $adminUsers = $this->getAdminUsers(); /** @var User $user */ foreach ($adminUsers as $user) { $this->sendMail($user, 'Admin Event : Admin System Settings Change -> ' . $event->getEventType(), 'Admin Event : Admin System Settings Change -> ' . $event->getEventType() . ' -> by ' . $event->getUser()->getUsername()); } }