private static function getIbanLength($iban)
    {
        $countrycode = substr($iban, 0, 2);

        $lengths = array(
            'AL' => 28,
            'AD' => 24,
            'AT' => 20,
            'AZ' => 28,
            'BH' => 22,
            'BE' => 16,
            'BA' => 20,
            'BR' => 29,
            'BG' => 22,
            'CR' => 21,
            'HR' => 21,
            'CY' => 28,
            'CZ' => 24,
            'DK' => 18,
            'DO' => 28,
            'TL' => 23,
            'EE' => 20,
            'FO' => 18,
            'FI' => 18,
            'FR' => 27,
            'GE' => 22,
            'DE' => 22,
            'GI' => 23,
            'GR' => 27,
            'GL' => 18,
            'GT' => 28,
            'HU' => 28,
            'IS' => 26,
            'IE' => 22,
            'IL' => 23,
            'IT' => 27,
            'JO' => 30,
            'KZ' => 20,
            'XK' => 20,
            'KW' => 30,
            'LV' => 21,
            'LB' => 28,
            'LI' => 21,
            'LT' => 20,
            'LU' => 20,
            'MK' => 19,
            'MT' => 31,
            'MR' => 27,
            'MU' => 30,
            'MC' => 27,
            'MD' => 24,
            'ME' => 22,
            'NL' => 18,
            'NO' => 15,
            'PK' => 24,
            'PS' => 29,
            'PL' => 28,
            'PT' => 25,
            'QA' => 29,
            'RO' => 24,
            'SM' => 27,
            'SA' => 24,
            'RS' => 22,
            'SK' => 24,
            'SI' => 19,
            'ES' => 24,
            'SE' => 24,
            'CH' => 21,
            'TN' => 24,
            'TR' => 26,
            'AE' => 23,
            'GB' => 22,
            'VG' => 24,
            'DZ' => 24,
            'AO' => 25,
            'BJ' => 28,
            'BF' => 27,
            'BI' => 16,
            'CM' => 27,
            'CV' => 25,
            'IR' => 26,
            'CI' => 28,
            'MG' => 27,
            'ML' => 28,
            'MZ' => 25,
            'SN' => 28,
            'UA' => 29
        );

        return isset($lengths[$countrycode]) ? $lengths[$countrycode] : false;
    }