What potential errors or bugs should be considered when implementing the pricing calculation in PHP?
One potential error to consider when implementing pricing calculation in PHP is the possibility of encountering floating-point precision issues. To avoid this, it's recommended to perform all calculations using integer values representing cents instead of floating-point numbers representing dollars.
// Calculate price in cents to avoid floating-point precision issues
$price = 1000; // $10.00 in cents
$taxRate = 0.085; // 8.5%
$totalPrice = (int)($price * (1 + $taxRate)); // Calculate total price in cents
echo "Total Price: $" . number_format($totalPrice / 100, 2); // Convert total price back to dollars for display