currentregionfinderservice.php

См. документацию.

<?php
 
namespace Bitrix\Location\Infrastructure\Service;
 
use Bitrix\Location\Common\BaseService;
use Bitrix\Main\Loader;
 
class CurrentRegionFinderService extends BaseService
{
    protected static $instance;

    public function getRegion(): ?string
    {
        $result = null;
 
        if (Loader::includeModule('bitrix24'))
        {
            $licensePrefix = \CBitrix24::getLicensePrefix();
            if ($licensePrefix !== false)
            {
                $result = (string)$licensePrefix;
            }
        }
        elseif (Loader::includeModule('intranet'))
        {
            $result = \CIntranetUtils::getPortalZone();
        }
        else
        {
            $result = LANGUAGE_ID;
        }
 
        return $result;
    }
}