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<?php
function get_post_ancestors($post) {
    $post = get_post($post);

    if ( ! isset( $post->ancestors ) )
        _get_post_ancestors( $post );

    if ( ! empty( $post->ancestors ) )
        return $post->ancestors;

    return array();
}
?>

• Function Reference/get post ancestors « WordPress Codex
  Description. Retrieve the parents of the post based on the post ID. Usage. <?php get_post_ancestors( $post ) ?> Parameters. $post: (mixed) (required) Post ID or ...
  codex.wordpress.org
• get_post_ancestors( $page->ID ) is always empty - WordPress
  I'm quite stumped. get_post_ancestors is supposed to accept an integer ID, but I get no ancestors unless I pass the page object itself: include '../wp-load.php' ...
  wordpress.org
• tags - get_post_ancestors returns empty - WordPress
  Oct 10, 2011 ... I'm using WordPress to organize documentation for a software product I'm supporting and have hit a bit of a snag. I have multiple FAQ ...
  wordpress.stackexchange.com
• get_post_ancestors | A HitchHackers guide through WordPress
  Feb 12, 2011 ... function get_post_ancestors($post) { $post = get_post($post); if ( !empty($post-> ancestors) ) return $post->ancestors; return array(); }. 1578 ...
  hitchhackerguide.com

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