Symfony2 language selector

Question

I would like to integrate a simple HTML form allowing the user to change Symfony2 web application\'s language (i.e. from page en/faq go to fr/faq). How to do it in a proper

Answer 1

I have not done this with a form, but simply with small flag images at the top of the screen. Each flag is a link to the current page, but with the two-letter language code in the URL replaced by the language of the respective flag. My layout template has the following code:

{% for language, description in languages %}
    
    
    
{% endfor %}

The replaceLanguageInUrl function is defined in my Twig extension class:

public function getFunctions()
{
    return array(
        'replaceLanguageInUrl' => new \Twig_Function_Method($this, 'replaceLanguageInUrl'),
    );
}    

public function replaceLanguageInUrl($currentLanguage, $newLanguage, $url)
{

    //EDIT BEGIN
    if (strpos($url,$currentLanguage) == false) {
        $url = getBaseUrl($url).'/'.$currentLanguage;
    }
    //EDIT END
    return str_replace('/' . $currentLanguage . '/', '/' . $newLanguage . '/', $url);
}

When a flag is clicked, the same page is loaded, but in the new language. This will also automatically set the new language in the session.