include parameter in route laravel and get it from controller code example

Example 1: laravel group routes

Route::group(['prefix' => 'admin'], function () {
    Route::get('users', function ()    {
        // Matches The "/admin/users" URL
    });
});

Example 2: named route with parameter laravel

Route::get('/menu/{category}/{product}/{item}', ['as' => 'named.route' , 'uses' => 'MenuController@listItem']);

// to get the actual linke
route('named.route', ['category' => $category->id, 'product' => $product->id, 'item' => $item->id]);