Generate a Menu that displays all child pages of top level parent
Here is a function that will output the top level parent along with all of the children of the current page. Helpful menu classes are added to the output. E.g. page_item_has_children, current_page_item, current_page_ancestor, etc. This solution is based on one of the examples in the documentation for wp_list_pages() and this answer here on WPSE, which … Read more