App\Libraries\Utils::replaceSubdomain PHP Метод

    public static function replaceSubdomain($domain, $subdomain)
    {
        $parsedUrl = parse_url($domain);
        $host = explode('.', $parsedUrl['host']);
        if (count($host) > 0) {
            $oldSubdomain = $host[0];
            $domain = str_replace("://{$oldSubdomain}.", "://{$subdomain}.", $domain);
        }
        return $domain;
    }