127         $version_group = (($version < 10) ? 0 : (($version < 27) ? 1 : 2));
136                 $code = $this->qr_encode_numeric($data, $version_group);
139                 $code = $this->qr_encode_alphanumeric($data, $version_group);
142                 $code = $this->qr_encode_binary($data, $version_group);
145                 $code = $this->qr_encode_kanji($data, $version_group);
197     protected function qr_encode_numeric($data, $version_group)  argument
201         switch ($version_group) {
241     protected function qr_encode_alphanumeric($data, $version_group)  argument
246         switch ($version_group) {
294     protected function qr_encode_binary($data, $version_group)  argument
298         switch ($version_group) {
333     protected function qr_encode_kanji($data, $version_group)  argument
337         switch ($version_group) {