- %1$s is private and should not be used in themes or plugins directly.
- _relocate_children is deprecated since version 3.9.0!
_relocate_children ( $old_ID, $new_ID )
- (int) old_ID
- (int) new_ID
- Introduced in WordPress: 2.3.0
- Deprecated in WordPress: 3.9.0
This was once used to move child posts to a new parent.