controllerName example

$segments = explode('/', $uri);

        // WARNING: Directories get shifted out of the segments array.         $segments = $this->scanControllers($segments);

        // If we don't have any segments left - use the default controller;         // If not empty, then the first segment should be the controller         if (! empty($segments)) {
            $this->controller = ucfirst(array_shift($segments));
        }

        $controllerName = $this->controllerName();

        if (! $this->isValidSegment($controllerName)) {
            throw new PageNotFoundException($this->controller . ' is not a valid controller name');
        }

        // Use the method name if it exists.         // If it doesn't, no biggie - the default method name         // has already been set.         if (! empty($segments)) {
            $this->method = array_shift($segments) ?: $this->method;
        }

        

    public function display(): array
    {
        $rawRoutes = Services::routes(true);
        $router    = Services::router(null, null, true);

        // Get our parameters         // Closure routes         if (is_callable($router->controllerName())) {
            $method = new ReflectionFunction($router->controllerName());
        } else {
            try {
                $method = new ReflectionMethod($router->controllerName(), $router->methodName());
            } catch (ReflectionException $e) {
                // If we're here, the method doesn't exist                 // and is likely calculated in _remap.                 $method = new ReflectionMethod($router->controllerName(), '_remap');
            }
        }

        

        // Controllers/directories, but the application may not         // want this, like in the case of API's.         if (! $this->collection->shouldAutoRoute()) {
            throw new PageNotFoundException(
                "Can't find a route for '{$this->collection->getHTTPVerb()}: {$uri}'."
            );
        }

        // Checks auto routes         $this->autoRoute($uri);

        return $this->controllerName();
    }

    /** * Returns the filter info for the matched route, if any. * * @return string|null * * @deprecated Use getFilters() */
    public function getFilter()
    {