public static function formToBdd($mask, $values)
    {
        $parse   = self::parseChartMask($mask);
        $nbInput = count($parse);
        $value = '';
        foreach ($values as $row) {
            $value .= $row['value'];
        }
        if ($value == '') {
            return null;
        }
        if ($nbInput === 1) {
            return $values[0]['value'];
        }
        $value = '';
        for ($k = 0; $k <= $nbInput - 1; $k++) {
            $part   = $values[$k]['value'];
            $length = $parse[$k]['size'];
            if (strlen($part) < $length) {
                if ($k === 0) {
                    if ($part === '') {
                        $part = '0';
                    }
                } else {
                    if ($k === $nbInput - 1) {
                        $part = str_pad($part, $length, '0', STR_PAD_RIGHT);
                    } else {
                        $part = str_pad($part, $length, '0', STR_PAD_LEFT);
                    }
                }
            }
            $value .= $part;
        }

        return $value;
    }