private function addItem()
    {
        $args = func_get_args();
        $this->items[$args[0]] = implode(':', array_slice($args, 1));

        return $this;
    }
private function addItem()
    {
        $args = func_get_args();
        $this->items[$args[0]] = implode(':', array_slice($args, 1));

        return $this;
    }
private function addItem ( ) { $ args = func_get_args ( ) ; $ this -> items [ $ args [ 0 ] ] = implode ( ':' , array_slice ( $ args , 1 ) ) ; return $ this ; }
Adds a new property item.

@return \self
Adds a new property item .