Attempts to get an ancestor node by the given id.
|
public getAncestor ( integer $id ) : null | |
||
| $id | integer | |
| 리턴 | null | |
|
/**
* Attempts to get an ancestor node by the given id.
*
* @param int $id
* @return null|AbstractNode
*/
public function getAncestor($id)
{
if (!is_null($this->parent)) {
if ($this->parent->id() == $id) {
return $this->parent;
}
return $this->parent->getAncestor($id);
}
return null;
}
