(PHP 3>= 3.0.15, PHP 4 >= 4.0RC1)
ftp_site -- Sends a SITE command to the server.
int ftp_site (int ftp_stream, string cmd)
Returns true on success, false on error.
ftp_site() sends the command specified by cmd to the FTP server. SITE commands are not standardized, and vary from server to server. They are useful for handling such things as file permissions and group membership.