WordPress Sub Menu / Show Sister Pages

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I am currently using this snippet to show children of the current page. 

<?php wp_list_pages('title_li=&child_of='.$post->ID.''); ?>

when I click one of those children pages the sub nav disappears because there are no child pages of the current page, so what I need it to do is continue to show the sister pages of the current page.

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What is the best way to do this?

Post Views: 2

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1 comment

  1. You could request the parent ID instead of the post ID if there is no childs on the current page :

    $page_query = new WP_Query();
$all_pages = $page_query->query(array('post_type' => 'page'));
$childs = get_page_children($post-ID, $all_pages);
if(!empty($childs)) {
    // display the page childs
    wp_list_pages($post->ID);
} else {
    // display the page siblings
    wp_list_pages(wp_get_post_parent_id($post->ID));
}

    get_page_children is used to check if there is any child for the current page – the WP_Query part is needed for get_page_children which required an array of all the pages to look in.

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