<?php

$total1 = '';
$qty1 = '';
$price1 = '';

if($_SERVER['REQUEST_METHOD'] === 'POST'){
    $qty1 = (int)$_POST['qty1'];
    $price1 = (float)$_POST['price1'];
    $total1 = $qty1 * $price1;
}

echo <<<ECHO
<form method="post">
    <table>
        <tr>
            <th>Qty</th>
            <th>Name</th>
            <th>Description</th>
            <th>Price</th>
            <th>Total</th>
        </tr>
        <tr>
            <td class="qty">
                <input type="text" name="qty1" class="qtybox" value="{$qty1}" />
            </td>
            <td class="items">
                Productname
            </td>
            <td class="descriptions">
                Item Descriptions
            </td>
            <td class="price">
                <input type="text" name="price1" class="pricebox" value="{$price1}" />
            </td>
            <td class="total">
                {$total1}
            </td>
        </tr>
    </table>
    <input type="submit" value="Calculate Totals">
</form>
ECHO;

?>