What is the FTP server? Please tell me the key of the Renames a file or directory on the FTP server, Changes the current directory to the parent directory on the FTP server?

see this link

http://www.wftpserver.com/

you can right click on any directory or file and select the rename option and change the name of directory or file

What is the FTP server? Please tell me the key of the Renames a file or directory on the FTP server, Changes the current directory to the parent directory on the FTP server?

What are you asking for?

I think you're asking for the following:
> What's an FTP-server ? (Just use Google or look at this link ...)

> How can I change to another directory using PHP ?
> How can I rename a directory using PHP?
(Look here)

Is that what you're asking for ?

If you're looking for an FTP server FileZilla is definitely the way to go ...