val_inn.php

См. документацию.

<?php
 
IncludeModuleLangFile(__FILE__);
 
class CFormValidatorINN
{
    public static function GetDescription()
    {
        return array(
            "NAME" => "INN", // validator string ID
            "DESCRIPTION" => GetMessage("FORM_VALIDATOR_VAL_INN_DESCRIPTION"), // validator description
            "TYPES" => array("text", "textarea"), //  list of types validator can be applied.
            "SETTINGS" => array("CFormValidatorINN", "GetSettings"), // method returning array of validator settings, optional
            "CONVERT_TO_DB" => array("CFormValidatorINN", "ToDB"), // method, processing validator settings to string to put to db, optional
            "CONVERT_FROM_DB" => array("CFormValidatorINN", "FromDB"), // method, processing validator settings from string from db, optional
            "HANDLER" => array("CFormValidatorINN", "DoValidate") // main validation method
        );
    }
 
    public static function GetSettings()
    {
        return array(
            "TYPE" => array(
                "TITLE" => GetMessage("FORM_VALIDATOR_VAL_INN_SETTINGS_TYPE"),
                "TYPE" => "DROPDOWN",
                "VALUES" => array(
                    "jur" => GetMessage("FORM_VALIDATOR_VAL_INN_SETTINGS_TYPE_JUR"),
                    "phys" => GetMessage("FORM_VALIDATOR_VAL_INN_SETTINGS_TYPE_PHYS"),
                    "both" => GetMessage("FORM_VALIDATOR_VAL_INN_SETTINGS_TYPE_BOTH"),
                ),
                "DEFAULT" => "both",
            ),
        );
    }
 
    public static function ToDB($arParams)
    {
        $arPar = array(
            "TYPE" => $arParams["TYPE"] == "phys" || $arParams["TYPE"] == "jur"? $arParams["TYPE"] : "both"
        );
 
        return serialize($arPar);
    }
 
    public static function FromDB($strParams)
    {
        return unserialize($strParams, ['allowed_classes' => false]);
    }
 
    public static function DoValidate($arParams, $arQuestion, $arAnswers, $arValues)
    {
        global $APPLICATION;
 
        foreach ($arValues as $value)
        {
            $value = strval($value);
 
            if ($value == '') continue;
 
            // check inn
            $lenValue = mb_strlen($value);
            if ($lenValue > 0)
            {
                $res = true;
 
                if ((double)$value == 0)
                {
                    $res = false;
                }
                else
                {
                    for ($i = 0; $i < $lenValue; $i++)
                    {
                        if ($value[$i] !== "0" && intval($value[$i]) == 0)
                        {
                            $res = false;
                            break;
                        }
                    }
                }
 
                if ($res)
                {
                    if (
                        $arParams['TYPE'] == "jur" && $lenValue != 10
                        ||
                        $arParams['TYPE'] == "phys" && $lenValue != 12
                        ||
                        $arParams['TYPE'] == "both" && $lenValue != 12 && $lenValue != 10
                    )
                    {
                        $res = false;
                    }
                    elseif (!CFormValidatorINN::__checkINN($value))
                    {
                        $res = false;
                    }
                }
 
                if (!$res)
                {
                    $APPLICATION->ThrowException(GetMessage("FORM_VALIDATOR_INN_ERROR"));
                    return false;
                }
            }
        }
 
        return true;
    }
 
    public static function __checkINN($value)
    {
        $arCheck = array(41,37,31,29,23,19,17,13,7,5,3);
 
        $lenValue = mb_strlen($value);
        if ($lenValue == 10)
        {
            $arCheckArrays = array(
                array_values(array_slice($arCheck, 2)),
            );
        }
        elseif ($lenValue == 12)
        {
            $arCheckArrays = array(
                $arCheck,
                array_values(array_slice($arCheck, 1)),
            );
        }
        else
        {
            return false;
        }
 
        foreach ($arCheckArrays as $checkKey => $arCheck)
        {
            $checkSum = 0;
            foreach ($arCheck as $key => $num)
            {
                $checkSum += $num * intval($value[$key]);
            }
 
            $checkNum = 11 - $checkSum % 11;
 
            if ($checkNum == 10 || $checkNum == 11) $checkNum = 0;
 
            if ($checkNum != intval(mb_substr($value, -$checkKey - 1, 1)))
                return false;
        }
 
        return true;
    }
}
 
AddEventHandler("form", "onFormValidatorBuildList", array("CFormValidatorINN", "GetDescription"));