Method check

text-to-qr/lib/phpqrcode/qrinput.php:497–514

($mode, $size, $data)

         **********************************************************************/

        public static function check($mode, $size, $data)
        {
            if($size <= 0) 
                return false;

            switch($mode) {
                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
                case QR_MODE_8:         return true; break;
                case QR_MODE_STRUCTURE: return true; break;
                
                default:
                    break;
            }

            return false;
        }
        
        
        //----------------------------------------------------------------------