Test if page is child and has children, if so echo child pages also on grandchild pages
Use ancestors: $ancestors = array_reverse( get_post_ancestors( $post->ID ) ); // reverse ancestors to make it more intuitive if ( isset( $ancestors[0] ) ) { if ( isset( $ancestors[1] ) ) { // 3rd tier $parent_id = $post->post_parent; } else { // 2nd tier $parent_id = $post->ID; } $args = array( ‘depth’ => 1, ‘child_of’ => … Read more