如何在 Laravel 视图中找到当前语言

BenjaminRH的答案非常好，他建议的方法非常有效.我对这个片段做了一些改进.现在，它检测浏览器语言，并根据应用程序的配置文件判断该语言是否受支持.

It's a quick hack, but it works on my app. Note that the application language is also set now. Feel free to use ore improve it.

Route::filter('before', function()
{
    // current uri language ($lang_uri)
    $lang_uri = URI::segment(1);

    // Set default session language if none is set
    if(!Session::has('language'))
    {
        // use lang in uri, if provided
        if(in_array($lang_uri, Config::get('application.languages')))
        {
            $lang = $lang_uri;  
        }
        // detect browser language
        elseif(isset(Request::server('http_accept_language')))
        {
            $headerlang = substr(Request::server('http_accept_language'), 0, 2);

            if(in_array($headerlang, Config::get('application.languages')))
            {
                // browser lang is supported, use it
                $lang = $headerlang;
            }
            // use default application lang
            else
            {
                $lang = Config::get('application.language');
            }
        }
        // no lang in uri nor in browser. use default
        else 
        {
                // use default application lang
                $lang = Config::get('application.language');            
        }

        // set application language for that user
        Session::put('language', $lang);
        Config::set('application.language',  $lang);
    }
    // session is available
    else
    {
        // set application to session lang
        Config::set('application.language', Session::get('language'));
    }

    // prefix is missing? add it
    if(!in_array($lang_uri, Config::get('application.languages'))) 
    {
        return Redirect::to(URI::current());
    }
    // a valid prefix is there, but not the correct lang? change app lang
    elseif(in_array($lang_uri, Config::get('application.languages')) AND $lang_uri != Config::get('application.language'))
    {
        Session::put('language', $lang_uri);
        Config::set('application.language',  $lang_uri);    
    }
});