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get_post_ancestors › WordPress Function
Since2.5.0
已弃用n/a
› get_post_ancestors ( $post )
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Retrieves the IDs of the ancestors of a post.
Related Functions: _get_post_ancestors, get_ancestors, get_post_custom, get_post_class, get_post_custom_keys
源码
function get_post_ancestors( $post ) { $post = get_post( $post ); if ( ! $post || empty( $post->post_parent ) || $post->post_parent == $post->ID ) { return array(); } $ancestors = array(); $id = $post->post_parent; $ancestors[] = $id; while ( $ancestor = get_post( $id ) ) { // Loop detection: If the ancestor has been seen before, break. if ( empty( $ancestor->post_parent ) || ( $ancestor->post_parent == $post->ID ) || in_array( $ancestor->post_parent, $ancestors, true ) ) { break; } $id = $ancestor->post_parent; $ancestors[] = $id; } return $ancestors; }