Arc-hive-omeka-theme/view/common/wordpress-menu.phtml

<?php

# Config
$wordpress_site="https://dev.arc-hive.zone";
$wordpress_endpoint="https://dev.arc-hive.zone/wp-json/menus/v1/menus/4";

use Zend\Http\Client;

$items = new ArrayObject;
$items[0] = new ArrayObject(); // top level menu items go here

if ($wordpress_endpoint) {
  try {
    $client = new Client($wordpress_endpoint);
    $client->setOptions(array("timeout"=>1));
    $response = $client->send();
  }
  catch (exception $e) {
    $response = null;
  }
  if ($response) {
    $response_data = json_decode($response->getBody());
    if (!$response->isClientError() && $response_data) {
      foreach ($response_data as $menu_item) {
        $lowered_title = strtolower($menu_item->title);
        $item_url = $menu_item->url;
        if ($lowered_title == 'login') { // manipulate login url
          $item_url = "/login";
        }
        $item_title = $menu_item->title;
        if ($lowered_title == 'collections') { // change Collections item
          $item_title = "Project";
          $item_url = $wordpress_site;
        }
        $item = [
          "id" => $menu_item->ID,
          "title" => $item_title,
          "url" => $item_url
        ];
        if (!array_key_exists($menu_item->menu_item_parent, $items)) {
          $items[$menu_item->menu_item_parent] = new ArrayObject();
        }
        $items[$menu_item->menu_item_parent][$menu_item->ID] =$item;
      }
    }
  }
}

if (count($items[0]) == 0) {
  // we did not retrieve a menu from the wordpress site
  // let's create a default menu
  if ($wordpress_site) {
    $project_item = [
      "id" => 2,
      "title" => "Project",
      "url" => $wordpress_site
    ];
    $items[0][2] = $project_item;
  }
  $login_item = [
    "id" => 1,
    "title" => "Login",
    "url" => "/login"
  ];
  $items[0][1] = $login_item;
}
//print_r($items);

if (!function_exists('render_menu')) {
  function render_menu($items, $level_id) {
    echo '<ul>' . PHP_EOL;
    foreach ($items[$level_id] as $menu_item) {
      echo '<li>' . PHP_EOL;
      echo '<a href="'.$menu_item['url'].'">'.$menu_item['title'].'</a>' . PHP_EOL;
      if (array_key_exists($menu_item['id'], $items)) {
          render_menu($items, $menu_item['id']); // render sub menu
      }
      echo '</li>' . PHP_EOL;
    }
    echo '</ul>' . PHP_EOL;
  }
}

render_menu($items, 0);

?>