/**
* Get menu item by id
*
* @param integer $id The item id
*
* @return MenuItem|null The item object if the ID exists or null if not found
*
* @since 1.5
*/
public function getItem($id)
{
$result = null;
if (isset($this->getMenu()[$id])) {
$result =& $this->getMenu()[$id];
}
return $result;
}