connect([$config = array()])

move($old_file, $new_file)

delete_dir($filepath)

rename($old_file, $new_file[, $move = FALSE])

upload($locpath, $rempath[, $mode = 'auto'[, $permissions = NULL]])

list_files([$path = '.'])

changedir($path[, $suppress_debug = FALSE])

download($rempath, $locpath[, $mode = 'auto'])

class CI_FTP connect([$config = array()])

delete_file($filepath)