// Merge all into one extremely huge array; unset


   // this later


   $input = array_merge($HTTP_GET_VARS, $HTTP_POST_VARS, $HTTP_COOKIE_VARS, $HTTP_SERVER_VARS, $HTTP_SESSION_VARS, $HTTP_ENV_VARS, $HTTP_POST_FILES);





   unset($input['input']);


   unset($input['not_unset']);





   while (list($var,) = @each($input))


   {


      if (in_array($var, $not_unset))


      {


         die('Hacking attempt!');


      }


      unset($$var);


   }





   unset($input);


}