App\Libraries\Utils::isOAuthEnabled PHP Метод

    public static function isOAuthEnabled()
    {
        $providers = [SOCIAL_GOOGLE, SOCIAL_FACEBOOK, SOCIAL_GITHUB, SOCIAL_LINKEDIN];
        foreach ($providers as $provider) {
            $key = strtoupper($provider) . '_CLIENT_ID';
            if (isset($_ENV[$key]) && $_ENV[$key]) {
                return true;
            }
        }
        return false;
    }