please Help Me (PHP CLASS) :     Class RUNcookieDescutes Extends DF_CookiesDescutes
{

   function RUNcookieDescutes($Cookietype)
   {

      // parent the faiamal father object
      parent::$this->EachDescute = array("fsr" => array(0,1), // order by date                  
	                                     "prf" => array(0,1,5,10,15), // refrech page url
										 "ths" => array(0,1), // type of signature
										 "tps" => array(10,30,50,70), // size of reply pages
										 "por" => array(0,1), // order by reply or not
										 "psa" => array(0,1,2), // find the display fined
										 "pfr" => array("absulot")); // selected forums posts
      // parent the faiamal father object
      if ($Cookietype == 0)
	  {
	     parent::findElementsDescuteCookie();
      }
      else
	  {
	     parent::findElementsDescuteSession();
	  }
   }

}
**Fatal error: Access to undeclared static property: DF_CookiesDescutes::$this in C:\xampp\htdocs\cp_inc\class_object.php on line 441**