function

<?php
$candy = [
    'Toffee' => ['price' => 3, 'stock' => 12],
    'Mints'  => ['price' => 2, 'stock' => 26],
    'Fudge'  => ['price' => 4, 'stock' => 8],
];
$tax = 20;

function get_reorder_message(int $stock): string
{
    return ($stock < 10) ? 'Yes' : 'No';
}

function get_total_value(float $price, int $quantity): float
{
    return $price * $quantity;
}

function get_tax_due(float $price, int $quantity, int $tax = 0): float
{
    return ($price * $quantity) * ($tax / 100);
}
?>

<table>
      <tr>
        <th>Product</th><th>Stock</th><th>Re-order</th><th>Total value</th><th>Tax due</th>
      </tr>
      <?php foreach ($candy as $product_name => $data) { ?>
        <tr>
          <td><?=  $product_name ?></td>
          <td><?=  $data['stock'] ?></td>
          <td><?=  get_reorder_message($data['stock']) ?></td>
          <td>$<?= get_total_value($data['price'], $data['stock']) ?></td>
          <td>$<?= get_tax_due($data['price'], $data['stock'], $tax) ?></td>
       </tr>
      <?php } ?>
</table>