How to Check if Post is a Child or Not

Are you looking for a way to check if post is a child or not and returns a value to use in an if-statement? While there’s probably a plugin for this, we have created a quick code snippet that you can use to check if post is a child or not in WordPress.

Instructions:

All you have to do is add this code to your theme’s single.php file or in a site-specific plugin:

<?php
function ma_is_child_of($page_id) {
	global $post;
	$is_child = false;
	$parents = get_post_ancestors($post);
	if ($parents) {
		foreach ($parents as $one_parent_id) {
			if ($one_parent_id == $page_id) {
				$is_child = true;
				break;
			}
		}
	}
	return $is_child;
};
 ?>

Note: If this is your first time adding code snippets in WordPress, then please refer to our guide on how to properly copy / paste code snippets in WordPress, so you don’t accidentally break your site.

If you liked this code snippet, please consider checking out our other articles on the site like: 43 best photography themes for WordPress and how to create stunning WordPress optin forms.