Laravel 11, Vuexy Admin 10.3, by admin@koneko.mx

app/Http/Controllers/LanguageController.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\App;
+
+class LanguageController extends Controller
+{
+    public function swap(Request $request, $locale)
+    {
+        if (!in_array($locale, ['en', 'es', 'fr', 'ar', 'de'])) {
+            abort(400);
+
+        } else {
+            $request->session()->put('locale', $locale);
+        }
+
+        App::setLocale($locale);
+
+        return redirect()->back();
+    }
+}