/** * Track a hit and display a transparent 1x1px gif * * @return string * @throws \Exception */ public function actionI() { try { // Analytics collect data requests from the trackers in the GET or POST form, // and write it to logs. Analytics::collect(); } catch (\Exception $e) { if (defined('YII_DEBUG') && YII_DEBUG) { throw $e; // Enable in debug } } return $this->getTransparentGif(); }