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

<?php

use Zend\Http\Client;

$client = New Client;
$client = new Client('https://dev.arc-hive.zone/wp-json/menus/v1/menus/4');
$response = $client->send();
$response_items = json_decode($response->getBody());
$items = new ArrayObject();

foreach ($response_items as $menu_item) {
  $item_url = $menu_item->url;
  if (strtolower($menu_item->title) == 'login') {
    $item_url = "/login";
  }
  $item = [
    "ID" => $menu_item->ID,
    "title" => $menu_item->title,
    "url" => $item_url,
    "menu_item_parent" => $menu_item->menu_item_parent,
  ];
  if (!array_key_exists($menu_item->menu_item_parent, $items)) {
    $items[$menu_item->menu_item_parent] = new ArrayObject();
  }
  $items[$menu_item->menu_item_parent][$menu_item->ID] =$item;
}

//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);

?>