( resource ftp_stream, string remote_file, resource handle, int mode [, int startpos])
ftp_nb_fput() uploads the data from the file pointer
handle until it reaches the end of the file. The
results are stored in remote_file on the FTP server.
The transfer mode specified must be either
FTP_ASCII or FTP_BINARY. The
difference between this function and the ftp_fput() is
that this function uploads the file asynchronously, so your program can
perform other operations while the file is being uploaded.
Returns TRUE on success or FALSE on failure.
See also ftp_nb_put(),