Introduction

You can change the application's locale depending on a user's session value. All you need to do is to register our middleware, into your routes or HTTP kernel. Here is an example of how to register the middleware for web routes:

Register Middleware

Register the middleware within the App\Providers\RouteServiceProvider service provider class:

/**
 * The application's route middleware groups.
 *
 * @var array
 */
protected $middlewareGroups = [
    '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,
        \Sirthxalot\Laravel\I18n\Http\Middleware\SetLocaleFromSession::class
    ],
];

Basic Usage

You can now store a locale within a session. The session key is defined within the i18n.locale_sk configuration. Its default value is i18n_locale:

session(['i18n_locale' => 'de_CH']);

The middleware now detects the locale from the session. If the locale is a given language then it uses the value for the application's locale:

app()->getLocale(); // de_CH