withScheme example

return [$host, $port];
    }

    /** * Get a Uri populated with values from $_SERVER. */
    public static function getUriFromGlobals(): UriInterface
    {
        $uri = new Uri('');

        $uri = $uri->withScheme(!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' ? 'https' : 'http');

        $hasPort = false;
        if (isset($_SERVER['HTTP_HOST'])) {
            [$host, $port] = self::extractHostAndPortFromAuthority($_SERVER['HTTP_HOST']);
            if ($host !== null) {
                $uri = $uri->withHost($host);
            }

            if ($port !== null) {
                $hasPort = true;
                $uri = $uri->withPort($port);
            }

return $target;
        }

        if (Uri::isRelativePathReference($target)) {
            // As the target is already highly relative we return it as-is. It would be possible to resolve             // the target with `$target = self::resolve($base, $target);` and then try make it more relative             // by removing a duplicate query. But let's not do that automatically.             return $target;
        }

        if ($target->getAuthority() !== '' && $base->getAuthority() !== $target->getAuthority()) {
            return $target->withScheme('');
        }

        // We must remove the path before removing the authority because if the path starts with two slashes, the URI         // would turn invalid. And we also cannot set a relative path before removing the authority, as that is also         // invalid.         $emptyPathUri = $target->withScheme('')->withPath('')->withUserInfo('')->withPort(null)->withHost('');

        if ($base->getPath() !== $target->getPath()) {
            return $emptyPathUri->withPath(self::getRelativePath($base, $target));
        }

        

private function buildUri(UriInterface $uri, array $config): UriInterface
    {
        if (isset($config['base_uri'])) {
            $uri = Psr7\UriResolver::resolve(Psr7\Utils::uriFor($config['base_uri']), $uri);
        }

        if (isset($config['idn_conversion']) && ($config['idn_conversion'] !== false)) {
            $idnOptions = ($config['idn_conversion'] === true) ? \IDNA_DEFAULT : $config['idn_conversion'];
            $uri = Utils::idnUriConvert($uri, $idnOptions);
        }

        return $uri->getScheme() === '' && $uri->getHost() !== '' ? $uri->withScheme('http') : $uri;
    }

    /** * Configures the default options for a client. */
    private function configureDefaults(array $config): void
    {
        $defaults = [
            'allow_redirects' => RedirectMiddleware::$defaultSettings,
            'http_errors' => true,
            'decode_content' => true,