PHP CoreCore::_instance Examples

Example #1

File: core.php Project: dalinhuang/StudentManage

 /**
  * 获取核心实例
  * @return Core
  */
 public static function &getInstance()
 {
     if (is_null(self::$_instance)) {
         self::$_instance = new Core();
     }
     return self::$_instance;
 }