Language change(localization) in Laravel 5.2 dynamically

These are the steps to change the language dynamically in laravel:

1. In the view page of the login add this lines:

<a href="{{ URL::to('lang/en')}}">English</a>&nbsp;<a href="{{ URL::to('lang/ar')}}">العربية</a>&nbsp;<a href="{{ URL::to('lang/hn')}}">हिन्दी</a>

2.In the routes add file add these lines:

Routes:Route::get('lang/{lang}', 'Auth\AuthController@change_language');

3. In the Controller file as specified in the route:

    public function change_language($lang=null){
        //$lang   =   $request->input('language'); //in case you want to give language select in the login form.

        if($lang) {
            App::setLocale($lang);
            Session::put('locale', $lang);
           // Config::set('constants.default_language_id',$lang);
            return Redirect::back();
        }

    }

4. Most important to create a middle ware i.e http/middleware/SetLocale.php

<?php

namespace App\Http\Middleware;

use Closure;
use Session;
use App;
use Config;

class SetLocale
{
    /**
     *
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
     
        if (Session::has('locale')) {
            $locale = Session::get('locale', Config::get('app.locale'));
        } else {
            $locale = substr($request->server('HTTP_ACCEPT_LANGUAGE'), 0, 2);

            if ($locale != 'ar' && $locale != 'en') {
                $locale = 'en';
            }
        }

        App::setLocale($locale);

        return $next($request);
    }
}    

5.And finally dont forget to register middleware in http/kernel.phpin the $middleware array:

 \App\Http\Middleware\SetLocale::class,