PHP code example

bitrix_installer_fragment.php

<?php

    interface iUserLocaleInstallerSettings
{
    public function getInstallationSiteURL();
}

class RussianInstallation implements iUserLocaleInstallerSettings
{
    public function getInstallationSiteURL()
    {
        return "https://www.1c-bitrix.ru/";
    }
}

class NonRussianInstallation implements iUserLocaleInstallerSettings
{
    public function getInstallationSiteURL()
    {
        return "http://www.bitrixsoft.com/";
    }
}

class Installer
{
    public function getLang()
    {
        $tmp = explode("_", Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']));
        return $tmp[0];
    }
}

//

$Inst = new Installer();

if (in_array($Inst->getLang(), array(
    "by",
    "ru",
    "ua"
)))
{
    $Installation = new RussianInstallation();
    echo "No, we are russians... " . $Installation->getInstallationSiteURL();
}
else if (in_array($Inst->getLang(), array(
    "en",
    "de"
)))
{
    $Installation = new NonRussianInstallation();
    echo "Detect English Installation Server: " . $Installation->getInstallationSiteURL();
}
else 
{
    $Installation = new NonRussianInstallation();
    echo "Other countries Installation Server: " . $Installation->getInstallationSiteURL();    
}

?>