date_format help

Hey guys, so I follow a tutorial here:
http://www.kirupa.com/web/sqlrecords_php2.htm

and was wondering how I would go about changing the date to DD/MM/YYYY?

Here’s a snippet to show you what I have at the moment.

$custorders = mysql_query("SELECT * FROM orders WHERE customerNumber = '$custid[customerNumber]' ");

//Set pointer to 0, so the fetch_assoc starts at first record.
$i = 0;

//Creates assoc array as long as customerNumber is matched.
while($custorders_ar = mysql_fetch_assoc($custorders))
    {
?>


<table border="1" cellpadding="5">
    <tr>
        <th>orderNumber</th>
        <th>orderDate</th>
        <th>requiredDate</th>
        <th>shippedDate</th>
        <th>status</th>
    </tr>
    <tr>
        <td><?php echo $custorders_ar['orderNumber']; ?></td>
        <td><?php echo $custorders_ar['orderDate']; ?></td>
        <td><?php echo $custorders_ar['requiredDate']; ?></td>
        <td><?php echo $custorders_ar['shippedDate']; ?></td>
        <td><?php echo $custorders_ar['status']; ?></td>
    </tr>
</table>

<?php
    $i+=1;
    }
?>