Ich have the following code:

<input type="text" name="quantity[]">
<input type="text" name="totalPrice[]">
<input type="text" name="quantity[]">
<input type="text" name="totalPrice[]">
<input type="text" name="quantity[]">
<input type="text" name="totalPrice[]">

And this php-code:

for ($i=0;$i<count($_POST['quantity']);$i++) {


    // replace prices
    $replacedUnitPrice = strtr($_POST['unitPrice'][$i], $searchAndReplace);
    $replacedTotalPrice = strtr($_POST['totalPrice'][$i], $searchAndReplace);

    // hide unitPrice if '0'
    if ($_POST['unitPrice'][$i] > 0) {
        $showUnitPrice = $replacedUnitPrice . " €";
    } else {
        $showUnitPrice = "";
    }

    $html .= '<tr>
<td align="center">' . $_POST['quantity'][$i] . ' ' . $period . '</td>
<td>' . $_POST['position'][$i] . '</td>
<td class="cost">' . $showUnitPrice . '</td>
<td class="cost">' . $replacedTotalPrice . ' €</td>
</tr>';

    $sumPrices += $_POST['totalPrice'][$i];
}

I want that the for loop starts with the highest number i have tried:

rsort($_POST['totalPrice']);

but this only sorts totalPrice and i the others fields are ignored, i want that this fields also sorts correctly.

What im making false?

Thanks.