Online PHP editor | vld for AbObF

<?php declare(strict_types=1); class Amount { var $amount; } class TaxedAmount extends Amount { var $rate; function __toString(): float { return $this->amount * $this->rate; } } $item = new TaxedAmount; $item->amount = 242.0; $item->rate = 1.13; echo "You owe me $" . $item->__toString() . " for this answer.";