Symfony2: #id in url to focus element

Question

I have this navigation with links like this: href="http://mamgrow.lt/veikla.php#konkursai"

So it opens a page with element with id='konkursai' focused.

How can I do this in Symfony?

My pages are created as actions and links to them are described in routing.yml

MainController:

public function aboutUsAction() {
    return $this->render('MamgrowMainBundle:Main:about-us.html.twig');
}

public function activitiesAction() {
    return $this->render('MamgrowMainBundle:Main:activities.html.twig');
}

public function contactsAction() {
    return $this->render('MamgrowMainBundle:Main:contacts.html.twig');
}

routing.yml:

about-us:
    path:     /apie-mus
    defaults: { _controller: MamgrowMainBundle:Main:aboutUs }

contacts:
    path:     /kontaktai
    defaults: { _controller: MamgrowMainBundle:Main:contacts }

activities:
    path:     /veikla
    defaults: { _controller: MamgrowMainBundle:Main:activities }

Answer 1

Simply append hash part to the generated path/url:

<a href="{{ path('contacts') }}#some-anchor">Contact Us</a>