Place several elements in the router

Hi eveybody

It's my first post on the forum and it's why i well present myself. Firstly, I'm French, so please excuse my grammar and my language mystakes . I'm coming from the South of France and I want to use CodeIgniter for a big project. Actually it's a secret project for french people.

I ha a little question about the routing in codeigniter. I am creating a forum and i want to pass all my parameters in the URL just like that :

http://base.com/forum/category-name/foru...topic-name

And I would for :

• forum/ -> list all the forums
  
• forum/category-name -> list all the forum of this category
  
• forum/category-name/forum-name -> list all the topics of this forum
  
• forum/category-name/forum-name/topic-name -> all posts of this topic
  

And I would to do it automatically with the router. But this code doesn't run :

PHP Code:

$route['forum'] = 'forum/index';
$route['forum/(.+)'] = 'forum/index/$1';
$route['forum/(:any)/(:any)'] = 'forum/index/$2';
$route['forum/(:any)/(:any)/(:any)'] = 'index/$1/$2/$3'; 


with theses functions in the Forum Controller :

PHP Code:

/**
     * Index avec toutes les catégories
     */
    public function index()
    {
        $this->cat();
    }

    /**
     * Index avec une catégorie spécifiée
     *
     * @param null $id
     */
    public function cat($id = NULL)
    {
        if( $id === NULL )
        {
            $title = 'Forums';
        }
        else
        {
            $title = 'Une catégorie';
        }

        $this->data = array_merge($this->data, [
            'title'         =>  $title,
            'navigation'    =>  $this->my_site->page_navigation($title),
            'flash'         =>  $this->my_site->page_flash(),
            'forums'        =>  $this->forum_model->get_forums($id),
        ]);

        $this->twig->display('forums/forums_index.twig', $this->data);
    }

public function forum($slug)
    {
        $forum = $this->forum_model->get_forum_id($slug);

        $this->data = array_merge($this->data, [
            'title'         =>  $forum['f_name'],
            'navigation'    =>  $this->my_site->page_navigation($forum['f_name']),
            'flash'         =>  $this->my_site->page_flash(),
            'topics'        =>  $this->forum_model->get_topics($foru['f_id']),
        ]);

        $this->twig->display('forums/forums_topics.twig', $this->data);
    } 


I don't know if my method is right or if I have an error with my code but I would learn the best practice to do that

Thank you very much

Would be simpler with a url like /forum/cat/category-name/forum-name/topic-name

function cat ($category = "all", $forum = "all", $topic = "all")

http://www.codeigniter.com/user_guide/ge...passinguri

Exactly yes