public function nth($key)
    {
        $items = array_keys($this->items);

        return isset($items[$key]) ? $this->offsetGet($items[$key]) : false;
    }
public function nth($key)
    {
        $items = array_keys($this->items);

        return isset($items[$key]) ? $this->offsetGet($items[$key]) : false;
    }
public function nth ( $ key ) { $ items = array_keys ( $ this -> items ) ; return isset ( $ items [ $ key ] ) ? $ this -> offsetGet ( $ items [ $ key ] ) : false ; }
Return nth item.

@param int $key

@return mixed|bool
Return nth item .