
 //echo WOOF_HELPER::get_var_size($operative_data);
        //$max_memory = (int) WP_MEMORY_LIMIT * 1000000; //bytes
        //if (WOOF_HELPER::get_var_size($operative_data) >= $max_memory)
        /*
          if (true)
          {
          die(json_encode(array(
          'error' => sprintf(__('Not enough memory for this operation. Max memory for your site is %s. Increase it if you need see statistic for bigger date range!', WP_MEMORY_LIMIT))
          )));
          }
         * */
