Esempio n. 1
0
 /**
  * @static
  * @param null $slots
  * @return AdEngine instance
  */
 public static function getInstance($slots = null)
 {
     wfProfileIn(__METHOD__);
     if (self::$instance == false) {
         self::$instance = new AdEngine($slots);
     }
     wfProfileOut(__METHOD__);
     return self::$instance;
 }