Help with number_format

[kawaii1001]

I am getting the following error message with the below code:

Warning: number_format() expects parameter 1 to be double, object given in ...

<?php
        $price=$preownedinfo->Price;    
        $formatted_price = number_format($price, 2);
    echo $formatted_price;
?>

Can you tell me what might be the issue.  Thanks.

[AbraCadaver]

Edit:  Just saw it was an object, I was thinking string: 

var_dump($price);

Depends on what echo $price; shows, but most likely:

$price = (float)$preownedinfo->Price;
//or
$formatted_price = number_format((float)$price

Edited September 18, 2013 by AbraCadaver

[requinix]

If you're getting this from SimpleXML, pretty much everything it returns is an object. Use typecasting like Abra showed.

Edited September 18, 2013 by requinix

[kawaii1001]

Excellent.  Worked.  Thanks!