[flexcoders] Upload file with WebOrb [PHP]

[panpanurge]

Hi,
i'm using a RemoteObject with WebOrb for PHP to transfer data from/to
the server. I'd like to know if is it possible to pass to a
remoteObject's method a file browsed by fileReference. 
In other words, i'd like to know if is it possible to manage files
uploading directly with WebOrb (or other platforms) without the use of
fileReference.upload() and URLRequest method.

Thanks
Andrea