Haal de bovenste parent categorie op en laat de children zien op elke sub pagina (of sub-sub pagina).
<?php
$product_parent_categories_all_hierachy = get_ancestors( $post->ID, 'page' );
$last_parent_cat = array_slice($product_parent_categories_all_hierachy, -1, 1, true);
if ( is_page() && $post->post_parent ):
if($last_parent_cat[1]){
$childpages = wp_list_pages( 'sort_column=menu_order&title_li=&child_of=' . $last_parent_cat[1] . '&echo=0&depth=1' );
} else {
$childpages = wp_list_pages( 'sort_column=menu_order&title_li=&child_of=' . $last_parent_cat[0] . '&echo=0&depth=1' );
};
else:
$childpages = wp_list_pages( 'sort_column=menu_order&title_li=&child_of=' . $post->ID . '&echo=0&depth=1' );
endif;
?>
#array #child #children #get_ancestors #posts #post_parent #slice