Description
int 
ftp_nb_fput ( resource ftp_stream, string remote_file, resource handle, int mode [, int startpos] )
   ftp_nb_fput() uploads the data from a file pointer to
   a remote file on the FTP server.
  
   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.