item::__toString PHP Метод

    public function __toString()
    {
        $rightCols = 10;
        $leftCols = 38;
        if ($this->dollarSign) {
            $leftCols = $leftCols / 2 - $rightCols / 2;
        }
        $left = str_pad($this->name, $leftCols);
        $sign = $this->dollarSign ? '$ ' : '';
        $right = str_pad($sign . $this->price, $rightCols, ' ', STR_PAD_LEFT);
        return "{$left}{$right}\n";
    }