ftp_mdtm -- Returns the last modified time of the given file.


int ftp_mdtm(int ftp_stream, string remote_file);

Returns a UNIX timestamp on success, or -1 on error.

ftp_mdtm() checks the last-modified time for a file, and returns it as a UNIX timestamp. If an error occurs, or the file does not exist, -1 is returned. Note that not all servers support this feature.