Anyone use Flex with php for file upload? PHP Notice: Undefined index: Filedata

Question

My code works. It uploads the file and inputs the file name into a database, but I can't shake this php notice. I think php is looking for multipart/form-data from the HTML form tag.
<form action="upload.php"  enctype="multipart/form-data"/>
But I am using flex. The multipart/form-data info is sent as the second default argument of the upload() function. Does anyone have experience with this? Thanks.
PHP Notice:  Undefined index:  Filedata
$filename = $_FILES['Filedata']['name'];
public function selectHandler(event:Event):void {
                request = new URLRequest(UPLOAD_DIR);
                try {
                    fileRef.upload(request);
                    textarea1.text = "Uploading " + fileRef.name + "...";
                catch (error:Error) {
                    trace("Unable to upload file.");
                    textarea1.text += "\nUnable to upload file.";

Answer 1

Hi, Thanks for your reply !
Im not getting any errors Flex side, as i say i get a alert message saying the file has been uploaded so . .
I am using a Wamp server on a windows machine, how do i check the file permissions on both the folder and the php file ?
Also how do i debug a php file ?
ANy help would be thankful !