Photo update page wont work

[kolakubes]

Im very new to php and have tried to mess with this code I got from someone else, Im trying to create an update page for a very simple photo database, Im kinda stuck as I have been glaring over this the last few days and cant seems to see where im going wrong, I keep getting this error on line 121. wat it should do is pickup the last settings on the populated fields, if not upload the new pic file fields.

Warning: Invalid argument supplied for foreach() in ... line 121.
where I have

if (isset($_POST["op"]) && ($_POST["op"]=="UpdatePhoto"))
{

foreach ($_FILES["PHOTOONE"]["error"] as $key => $error) 
            {
   if ($error == UPLOAD_ERR_OK) {
       $tmp_name = $_FILES["PHOTOONE"]["tmp_name"][$key];
       $name = $_FILES["PHOTOONE"]["name"][$key];
       move_uploaded_file($tmp_name, "$ImagePath/".$_POST['PHOTOREF']."-$name");
$PHOTOONE = "".$_POST['PHOTOREF']."-$name";
                                }
            }

can anyone please tell me what Im missing or am doing wrong, much appreciated.

[bogu]

Try it like this ...

if (is_array($_FILES["PHOTOONE"]["error"]) and !empty($_FILES["PHOTOONE"]["error"])) {
    foreach ($_FILES["PHOTOONE"]["error"] as $key => $value) {
        ......
    }
}