Filters the post parent — used to check for and prevent hierarchy loops.

$post_parent int

Post parent ID.

$post_ID int

Post ID.

$new_postarr array

Array of parsed post data.

$postarr array

Array of sanitized, but otherwise unmodified post data.

File: wp-includes/post.php. View all references

$post_parent = apply_filters( 'wp_insert_post_parent', $post_parent, $post_ID, $new_postarr, $postarr );