language are not changing in laravel localization - php

Question

How do I solve my problem ?
Let me tell that how can i change language in laravel web page
List item
Route::get('/{lang?}', function($lang = null){
App::setLocale($lang);
return view('frontend.home');
});

Answer 1

This code will work only for the current request, so when you return the view, it's a new request.
So what you have to do is to persist the language, for each request, so we'll use middleware.
First of all, create a middleware, to check the which language is set, as follows,
public function handle(Request $request, Closure $next)
{
if (session()->has("lang")) {
App::setLocale(session()->get("lang"));
}
return $next($request);
}
What this code will do is, check if the session has the lang_code exists, so it will set it.
After that, you need to add this middleware to your $middlewareGroups, inside app\Http\Kernel.php, as follows :
<?php
'web' => [
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\App\Http\Middleware\VerifyCsrfToken::class,
\Illuminate\Routing\Middleware\SubstituteBindings::class,
\App\Http\Middleware\Language::class, # This is the line we will add
],
Then finally we'll tweak a little bit your function to become like this :
Route::get('/{lang?}', function($lang = null){
App::setLocale($lang);
session()->put('lang', $lang);
return view('frontend.home');
});
Like this, within each request, the middleware will verify the language, and set it.