FS_METHOD forces the filesystem method. It should only be “direct”, “ssh2”, “ftpext”, or “ftpsockets”. Generally, you should only change this if you are experiencing update problems. If you change it and it doesn’t help, change it back/remove it. Under most circumstances, setting it to ‘ftpsockets’ will work if the automatically chosen method does not.
- (Primary Preference) “direct” forces it to use Direct File I/O requests from within PHP, this is fraught with opening up security issues on poorly configured hosts, This is chosen automatically when appropriate.
- (Secondary Preference) “ssh2” is to force the usage of the SSH PHP Extension if installed
- (3rd Preference) “ftpext” is to force the usage of the FTP PHP Extension for FTP Access, and finally
- (4th Preference) “ftpsockets” utilises the PHP Sockets Class for FTP Access.
以上是官方的文檔說明
如果有不懂的地方歡迎留言！