PHP Pap_Tracking_ImpressionTracker::instance示例

示例#1

文件： ImpressionTracker.class.php 项目： AmineCherrai/rostanvo

 /**
  * @return Pap_Tracking_ImpressionTracker
  */
 public static function getInstance() {
     if (self::$instance == NULL) {
         self::$instance = new Pap_Tracking_ImpressionTracker();
     }
     return self::$instance;
 }