duskosobic
1/25/2017 - 2:49 PM

Find ID of Top-Most Parent Page. This will find what the ID is of the top-most parent Page, in a nested child page. For example, this page y

Find ID of Top-Most Parent Page. This will find what the ID is of the top-most parent Page, in a nested child page. For example, this page you are literally looking at is nested under. $parent will be the correct ID. For example, for use with wp_list_pages.

find_oldest_parent_page.php
content_copyfile_download
<?php

if ($post->post_parent)	{
	$ancestors=get_post_ancestors($post->ID);
	$root=count($ancestors)-1;
	$parent = $ancestors[$root];
} else {
	$parent = $post->ID;
}

?>