/** * @singleton method used to instantiate class object * @access public * @return EE_Network_Config instance */ public static function instance() { // check if class object is instantiated, and instantiated properly if (self::$_instance === NULL or !is_object(self::$_instance) or !self::$_instance instanceof EE_Network_Config) { self::$_instance = new self(); } return self::$_instance; }