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symfonymenuknpmenu

How to create a menu of tree items by KnpMenu in symfony2

I'd like to create a ul like following:

<ul>
    <li>
       <a><a>
       <ul>......</ul>
    </li>
</ul>

The sub ul would be another sub item, I have no idea how to create it, any one could help me thanks.

Solution 
  • $menu = $factory->createItem('root');

$menu
    ->setChildrenAttribute('class', 'nav pull-right');

$menu
    ->addChild('User')
    ->setAttribute('dropdown', true);

$menu['User']
    ->addChild('Profile', array(
        'uri' => '#'
    ))
    ->setAttribute('divider_append', true);

$menu['User']
    ->addChild('Logout', array(
        'uri' => '#'
    ));

    More information: http://linkofy.wordpress.com/2012/04/02/using-knpmenubundle-and-twitter-bootstrap/