When using WordPress as a CMS or building a breadcrumb, you often need to get the post ancestors. Today let’s have a look at how you can easily get post ancestors of a specific post.
In order to get the post ancestors (also called parents) simply use the get_post_ancestors() function. This function takes a single argument which can be either the post ID or post object, and return the ancestors IDs as an array.
$ancestors = get_post_ancestors($post);
Thanks to Coen Jacobs for this great piece of code!