calculate price

[boontoony]

Hi,

I was wondering if i could get some help on this form. I am basically calculating an amount of metres by the price per metre.

 

I have the form set up, below, but need help actually processing the calculation. How do i echo the following on "calculate_price.php".

 

example

 

20 metres (which was selected from the drop down menu) = $the price of metres

 

Any help would be appreciated.

 

<form method="post" action="calculate_price.php">
  <td align="left" valign="top" class="content"><table border="0">
      <tr>
        <td nowrap>Metres</td>
        <td><select name="metres" style="width:100px; ">
            <option value="15">15</option>
            <option value="20">20</option>
            <option value="25">25</option>
            <option value="30">30</option>
            <option value="35">35</option>
            <option value="40">40</option>
            <option value="45">45</option>
            <option value="50">50</option>
            <option value="55">55</option>
            <option value="60">60</option>
            <option value="65">65</option>
            <option value="70">70</option>
            <option value="75">75</option>
            <option value="80">80</option>
          </select></td>
      </tr>
    </table>
    <input name="type" type="radio" value="24">
    ex 1 - $24 per metre<br>
    <input name="type" type="radio" value="27">
    ex 2 - $27 per metre<br>
    <input name="type" type="radio" value="28">
    ex 3 - $28 per  metre<br>
    <input name="type" type="radio" value="30">
    ex 3 – $30 per metre<br>
    <input type="submit" name="Submit" value="Calculate">
</form>

 

[5kyy8lu3]

 

is this what you're looking for?

 

<?php

$price = $_POST['metres'] * $_POST['type'];

echo 'The price for ' . $_POST['metres'] . ' metres at $' . $_POST['type'] . ' per metre comes to a total of $' . $price . '.';

?>

 

this should calculate your price, just make sure you validate your form data for security reasons

[boontoony]

Thank you very much. That is exactly what i was after.

 

I am very much a beginner, so I wouldn't have a clue about validating anything. :-\