Best Approach in Multi Language Site

Its hard to say, can you be more specific, what exactly do you want achieve? Multilanguage models, how to handle translations, ...?

i made my project using this : https://github.com/phalcon/website and this https://docs.phalcon.io/en/latest/reference/translate.html

also https://github.com/phalcon/incubator -> seearch page for Translate

I use "symfony/translation". The best extension with PoEdit.

$di->setShared('translator', function() {
    $lang = Lang::getCurrentLanguage();

    $translator = new \Symfony\Component\Translation\Translator($lang, new \Symfony\Component\Translation\MessageSelector());
    $translator->setFallbackLocales(array('en_US'));
    $translator->addLoader('mo', new \Symfony\Component\Translation\Loader\MoFileLoader());

    if(file_exists(sprintf(__DIR__ . '/locale/%s.mo', $lang))) {
        $translator->addResource('mo', sprintf(__DIR__ . '/Resource/locale/%s.mo', $lang), $lang);
    } else {
        $translator->addResource('mo', __DIR__ . '/Resource/locale/en_US.mo', 'en_US');
    }

    return $translator;
});