The findById() function allows you to retrieve a set of page objects using a page's id as the search term.¹⁾ This function works in the same way as the find() function; consult its entry for more discussion about how to use “findById” also.

You can use the id of page to construct a basic menu of child pages. This can be helpful in cases where the slugs or location of a parent page might change (“4” is the id of the “articles” page in a default installation of Wolf):

<?php $children = $this->findById(4)->children(); ?>
<ul>
  <?php foreach ($children as $child) : ?>
  <li><?php echo $child->link(); ?></li>
  <?php endforeach; ?>
</ul>