Illuminate\Routing\Router::matched PHP Method

    public function matched($callback)
    {
        $this->events->listen(Events\RouteMatched::class, $callback);
    }

 /**
  * Define your route model bindings, pattern filters, etc.
  *
  * @param  \Illuminate\Routing\Router  $router
  * @return void
  */
 public function boot(Router $router)
 {
     // Sets up our routing tokens.
     $router->pattern('board', Board::URI_PATTERN);
     $router->pattern('id', '[1-9]\\d*');
     $router->model('ban', '\\App\\Ban');
     $router->model('board', '\\App\\Board');
     $router->model('post', '\\App\\Post');
     $router->model('report', '\\App\\Report');
     $router->model('role', '\\App\\Role');
     $router->bind('user', function ($value, $route) {
         if (is_numeric($value)) {
             return \App\User::find($value);
         } else {
             if (preg_match('/^[a-z0-9]{1,64}\\.(?P<id>\\d+)$/i', $value, $matches)) {
                 return \App\User::find($matches['id']);
             }
         }
     });
     $router->bind('role', function ($value, $route) {
         if (is_numeric($value)) {
             return \App\Role::find($value);
         } else {
             if (preg_match('/^[a-z0-9]{1,64}\\.(?P<id>\\d+)$/i', $value, $matches)) {
                 return \App\Role::find($matches['id']);
             }
         }
     });
     $router->bind('post_id', function ($value, $route) {
         $board = $route->getParameter('board');
         if (is_numeric($value) && $board instanceof Board) {
             return $board->getThreadByBoardId($value);
         }
     });
     // Binds a matched instance of a {board} as a singleton instance.
     $router->matched(function ($route, $request) {
         // Binds the board to the application if it exists.
         $board = $route->getParameter('board');
         if ($board instanceof Board && $board->exists) {
             $board->applicationSingleton = true;
             //$this->app->instance("\App\Board", $board);
             $this->app->singleton("\\App\\Board", function ($app) use($board) {
                 return $board->load(['assets', 'settings']);
             });
         }
         // Binds the post to the application if it exists.
         $post = $route->getParameter('post_id');
         if ($post instanceof Post && $post->exists) {
             $route->setParameter('post', $post);
             //$this->app->instance("\App\Post", $post);
             $this->app->singleton("\\App\\Post", function ($app) use($post) {
                 return $post;
             });
         }
     });
     parent::boot($router);
 }