Illuminate\Routing\Router::put PHP Method

    public function put($uri, $action = null)
    {
        return $this->addRoute('PUT', $uri, $action);
    }

 /**
  * Define the routes for the application.
  *
  * @param \Illuminate\Routing\Router $router
  *
  * @return void
  */
 public function map(Router $router)
 {
     $router->group(['namespace' => $this->namespace], function (Router $router) {
         /*
          * Admin routes
          */
         $router->get('admin/menus', 'AdminController@index')->name('admin::index-menus');
         $router->get('admin/menus/create', 'AdminController@create')->name('admin::create-menu');
         $router->get('admin/menus/{menu}/edit', 'AdminController@edit')->name('admin::edit-menu');
         $router->post('admin/menus', 'AdminController@store')->name('admin::store-menu');
         $router->put('admin/menus/{menu}', 'AdminController@update')->name('admin::update-menu');
         $router->get('admin/menus/{menu}/menulinks', 'MenulinksAdminController@index')->name('admin::index-menulinks');
         $router->get('admin/menus/{menu}/menulinks/create', 'MenulinksAdminController@create')->name('admin::create-menulink');
         $router->get('admin/menus/{menu}/menulinks/{menulink}/edit', 'MenulinksAdminController@edit')->name('admin::edit-menulink');
         $router->post('admin/menus/{menu}/menulinks', 'MenulinksAdminController@store')->name('admin::store-menulink');
         $router->put('admin/menus/{menu}/menulinks/{menulink}', 'MenulinksAdminController@update')->name('admin::update-menulink');
         $router->post('admin/menulinks/sort', 'MenulinksAdminController@sort')->name('admin::sort-menulinks');
         /*
          * API routes
          */
         $router->get('api/menus', 'ApiController@index')->name('api::index-menus');
         $router->put('api/menus/{menu}', 'ApiController@update')->name('api::update-menu');
         $router->delete('api/menus/{menu}', 'ApiController@destroy')->name('api::destroy-menu');
         $router->get('api/menulinks', 'MenulinksApiController@index')->name('api::index-menulinks');
         $router->put('api/menulinks/{menulink}', 'MenulinksApiController@update')->name('api::update-menulink');
         $router->delete('api/menulinks/{menulink}', 'MenulinksApiController@destroy')->name('api::destroy-menulink');
     });
 }