Generate a custom structure for Wordpress menus.

readme.md

This gist is for showing an example of a custom wordpress menu.

If you want to get more from the menu item simply have a look at the $item object. i.e:

// Will return a large object with lots of props like title, url, description, id etc.
var_dump( $item );

This code works on Wordpress 4.1.1 as of 31st of March 2015

wp_custom_nav.php

<?php
  $menu_name = 'main_nav';
  $locations = get_nav_menu_locations();
  $menu = wp_get_nav_menu_object( $locations[ $menu_name ] );
  $menuitems = wp_get_nav_menu_items( $menu->term_id, array( 'order' => 'DESC' ) );
?>

<nav>
<ul class="main-nav">
    <?php
    $count = 0;
    $submenu = false;

    foreach( $menuitems as $item ):

        $link = $item->url;
        $title = $item->title;
        // item does not have a parent so menu_item_parent equals 0 (false)
        if ( !$item->menu_item_parent ):

        // save this id for later comparison with sub-menu items
        $parent_id = $item->ID;
    ?>

    <li class="item">
        <a href="<?php echo $link; ?>" class="title">
            <?php echo $title; ?>
        </a>
    <?php endif; ?>

        <?php if ( $parent_id == $item->menu_item_parent ): ?>

            <?php if ( !$submenu ): $submenu = true; ?>
            <ul class="sub-menu">
            <?php endif; ?>

                <li class="item">
                    <a href="<?php echo $link; ?>" class="title"><?php echo $title; ?></a>
                </li>

            <?php if ( $menuitems[ $count + 1 ]->menu_item_parent != $parent_id && $submenu ): ?>
            </ul>
            <?php $submenu = false; endif; ?>

        <?php endif; ?>

    <?php if ( $menuitems[ $count + 1 ]->menu_item_parent != $parent_id ): ?>
    </li>                           
    <?php $submenu = false; endif; ?>

<?php $count++; endforeach; ?>

</ul>
</nav>

That code just doesn't work properly, I ended up just adding the menu items into a PHP array so I could output easily.

Add the following into your functions.php then call in your theme passing the menu of choice.

function wp_get_menu_array($current_menu) {
    $array_menu = wp_get_nav_menu_items($current_menu);
    $menu = array();
    foreach ($array_menu as $m) {
        if (empty($m->menu_item_parent)) {
            $menu[$m->ID] = array();
            $menu[$m->ID]['ID']          =   $m->ID;
            $menu[$m->ID]['title']       =   $m->title;
            $menu[$m->ID]['url']         =   $m->url;
            $menu[$m->ID]['children']    =   array();
        }
    }
    $submenu = array();
    foreach ($array_menu as $m) {
        if ($m->menu_item_parent) {
            $submenu[$m->ID] = array();
            $submenu[$m->ID]['ID']       =   $m->ID;
            $submenu[$m->ID]['title']    =   $m->title;
            $submenu[$m->ID]['url']      =   $m->url;
            $menu[$m->menu_item_parent]['children'][$m->ID] = $submenu[$m->ID];
        }
    }
    return $menu;
}

Then call in your theme $menu_items = wp_get_menu_array('main-menu');

  <nav>
      <ul>
        <?php foreach ($menu_items as $item) : ?>
          <li>
            <a href="<?= $item['url'] ?>" title="<?= $item['title'] ?>"><?= $item['title'] ?></a>
            <?php if( !empty($item['children']) ):?>
            <ul class="sub-menu">
              <?php foreach($item['children'] as $child): ?>
                <li class="b-main-header__sub-menu__nav-item">
                  <a href="<?= $child['url'] ?>" title="<?= $child['title'] ?>"><?= $child['title'] ?></a>
                </li>
              <?php endforeach; ?>
            </ul>
            <?php endif; ?>
          </li>
        <?php endforeach; ?>
     <ul>
</nav>

This works nicely, thanks. Any tips on how to approach getting the current menu item styled?

Bu kod düzgün çalışmıyor, kolayca çıktı alabilmek için menü öğelerini bir PHP dizisine ekledim.

Aşağıdakileri function.php dosyanıza ekleyin ve ardından seçtiğiniz menüden temanızı çağırın.

function wp_get_menu_array($current_menu) {
    $array_menu = wp_get_nav_menu_items($current_menu);
    $menu = array();
    foreach ($array_menu as $m) {
        if (empty($m->menu_item_parent)) {
            $menu[$m->ID] = array();
            $menu[$m->ID]['ID']          =   $m->ID;
            $menu[$m->ID]['title']       =   $m->title;
            $menu[$m->ID]['url']         =   $m->url;
            $menu[$m->ID]['children']    =   array();
        }
    }
    $submenu = array();
    foreach ($array_menu as $m) {
        if ($m->menu_item_parent) {
            $submenu[$m->ID] = array();
            $submenu[$m->ID]['ID']       =   $m->ID;
            $submenu[$m->ID]['title']    =   $m->title;
            $submenu[$m->ID]['url']      =   $m->url;
            $menu[$m->menu_item_parent]['children'][$m->ID] = $submenu[$m->ID];
        }
    }
    return $menu;
}

Ardından temanızı arayın $menu_items = wp_get_menu_array('main-menu');

  <nav>
      <ul>
        <?php foreach ($menu_items as $item) : ?>
          <li>
            <a href="<?= $item['url'] ?>" title="<?= $item['title'] ?>"><?= $item['title'] ?></a>
            <?php if( !empty($item['children']) ):?>
            <ul class="sub-menu">
              <?php foreach($item['children'] as $child): ?>
                <li class="b-main-header__sub-menu__nav-item">
                  <a href="<?= $child['url'] ?>" title="<?= $child['title'] ?>"><?= $child['title'] ?></a>
                </li>
              <?php endforeach; ?>
            </ul>
            <?php endif; ?>
          </li>
        <?php endforeach; ?>
     <ul>
</nav>

This code works fine but when I add 3rd level menu it gives the following warning. How can I fix this?

NOTICE: UNDEFINED INDEX: TITLE IN /HOME/ZIRKON/PUBLIC_HTML/DEMO/CLEANMAX/WP-CONTENT/THEMES/CLEANMAX-MAIN/HEADER.PHP ON LINE 70

<nav class='navbar navbar-expand-lg navbar-dark bg-dark'>
            <div class="container-fluid">
                <a class="navbar-brand" href="<?= home_url() ?>"><?= bloginfo() ?></a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarSupportedContent">
                    <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                        <li class="nav-item">
                            <a class="nav-link active" aria-current="page" href="<?= home_url() ?>">Home</a>
                        </li>
                        <?php foreach (get_pages() as $page) : ?>
                            <li class="nav-item">
                                <a class="nav-link active" aria-current="page" href="<?= home_url() . '/' . $page->post_name ?>"><?= $page->post_title ?></a>
                            </li>
                        <?php endforeach; ?>
                    </ul>
                </div>
            </div>
        </nav>

<nav class='navbar navbar-expand-lg navbar-dark bg-dark'>
            <div class="container-fluid">
                <a class="navbar-brand" href="<?= home_url() ?>"><?= bloginfo() ?></a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarSupportedContent">
                    <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                        <li class="nav-item">
                            <a class="nav-link active" aria-current="page" href="<?= home_url() ?>">Home</a>
                        </li>
                        <?php foreach (get_pages() as $page) : ?>
                            <li class="nav-item">
                                <a class="nav-link active" aria-current="page" href="<?= home_url() . '/' . $page->post_name ?>"><?= $page->post_title ?></a>
                            </li>
                        <?php endforeach; ?>
                    </ul>
                </div>
            </div>
        </nav>

better code readability

<?= $page->post_title ?>

this is not happening. main code becomes but dropdown icon disappears