code: public function GIFPutByte($bytes)
      {
          for ($i = 0; $i < count($bytes); $i++) {
              $this->GIF_string .= chr($bytes[$i]);
          }
      }
docs: /*
  :::::::::::::::::::::::::::::::::::::::::::::::::::
  ::
  ::    GIFPutByte ( $bytes )
  ::