nav_menu_item_id │ filter-hook │ WP 3.0.1

Filters the ID attribute applied to a menu item's list item element.

Usage

add_filter( 'nav_menu_item_id', 'wp_kama_nav_menu_item_id_filter', 10, 4 );

/**
 * Function for `nav_menu_item_id` filter-hook.
 * 
 * @param string   $menu_item_id The ID attribute applied to the menu item's `<li>` element.
 * @param WP_Post  $menu_item    The current menu item.
 * @param stdClass $args         An object of wp_nav_menu() arguments.
 * @param int      $depth        Depth of menu item. Used for padding.
 *
 * @return string
 */
function wp_kama_nav_menu_item_id_filter( $menu_item_id, $menu_item, $args, $depth ){

	// filter...
	return $menu_item_id;
}

$menu_item_id(string)

The ID attribute applied to the menu item's <li> element.

$menu_item(WP_Post)

The current menu item.

$args(stdClass)

An object of wp_nav_menu() arguments.

$depth(int)

Depth of menu item. Used for padding.

Changelog

Where the hook is called

$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $menu_item->ID, $menu_item, $args, $depth );

Where the hook is used in WordPress

add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );