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I'm trying to figure out if it's possible to attach an attribute to a wp nav menu item.
To demonstrate, this php:

    'menu'  =>  'main',
    'container' => false

would output a menu like so:

<ul id="menu-main" class="menu">
<li id="menu-item-01" class="menu-item">Menu 01</li>
<li id="menu-item-02" class="menu-item">Menu 02</li>
<li id="menu-item-03" class="menu-item">Menu 03</li>
<li id="menu-item-04" class="menu-item">Menu 04</li>

but what I'd actually like is something like this:

<ul id="menu-main" class="menu">
<li id="menu-item-01" class="menu-item" data-hook="01">Menu 01</li>
<li id="menu-item-02" class="menu-item" data-hook="02">Menu 02</li>
<li id="menu-item-03" class="menu-item" data-hook="03">Menu 03</li>
<li id="menu-item-04" class="menu-item" data-hook="04">Menu 04</li>

Is that at all possible to achieve? The attribute doesn't have to be data-hook I'm just using that as an example, just something I can use as an identifier.

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marked as duplicate by toscho Jun 18 '13 at 12:33

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1 Answer 1

up vote 2 down vote accepted

You can use a Custom Walker to add attributes to the menu items.

Basically, you add a parameter 'walker' to the wp_nav_menu() options and call an instance of an enhanced class:

    array (
        'menu'            => 'main-menu',
        'container'       => FALSE,
        'container_id'    => FALSE,
        'menu_class'      => '',
        'menu_id'         => FALSE,
        'depth'           => 1,
        'walker'          => new Description_Walker

The class Description_Walker extends Walker_Nav_Menu and changes the function start_el( &$output, $item, $depth, $args ).

  1. From the Codex:

  2. I found this tutorial, you might find it very useful:

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