number_format duplicity

[JiminSA]

I'm using number_format as opposed to sprintf to format 2 fields to be comma delimited, like so...
PHP Code:
$vehicles["vehicles"][$vehicles["nextid"]] = array(
"make" => $_REQUEST["make"],
"model" => $_REQUEST["model"],
"year" => (int)$_REQUEST["year"],
"price" => number_format(($_REQUEST["price"]), 2),
"Kms" => number_format(($_REQUEST["Kms"]), 0),
"doors" => $_REQUEST["doors"],
as you can see one has 2 decimal places and the other does not.

Problem:
When I edit the price field the Kms field is reformatted! (i.e. any comma is treated as a decimal point - so that a value of 155,000 becomes 155)
Conversely...
When I edit the Kms field the price field is reformatted! (i.e. any comma is treated as a decimal point - so that a value of 68,700.00 becomes 68.00)

If I edit both fields before form submission it formats both correctly
Here is the generated html...

Code:

</td><td>            <div class="formitem">
            <div class="formitemtitle">Price </div>
            <input class="text" style="width: 100px;" type="text" id="f7_price" name="price" value="68,700.00" />
            <div class="formitemdesc">o.n.c.o. amount.</div>
            </div>
</td><td>            <div class="formitem">
            <div class="formitemtitle">Kilometres</div>
            <input class="text" style="width: 100px;" type="text" id="f8_Kms" name="Kms" value="155,000" />
            <div class="formitemdesc">Odometer reading.</div>
            </div>
</td>            </tr></table>

[thruska]

You need to remove the comma before feeding it into number_format(). It needs to be a numeric value. It is best to store a numeric value too. IMO, the admin doesn't matter how the number gets displayed - only the frontend really matters.