(PHP3 >= 3.0.13, PHP4 >= 4.0b4)
int ftp_size (int ftp_stream, string remote_file)
int ftp_size
Returns the file size on success, or -1 on error.
ftp_size() returns the size of a file. If an error occurs, of if the file does not exist, -1 is returned. Not all servers support this feature.