# ftp_cdup

(PHP 4, PHP 5)

ftp_cdup — Changes to the parent directory

### Description

bool ftp_cdup ( resource `$ftp_stream` )

Changes to the parent directory.

### Parameters

`ftp_stream`

  The link identifier of the FTP connection.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Examples

Example#1 ftp_cdup() example

`<?php
// set up basic connection
$conn_id = ftp_connect($ftp_server);
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// change the current directory to html
ftp_chdir($conn_id, 'html');
echo ftp_pwd($conn_id); // /html
// return to the parent directory
if (ftp_cdup($conn_id)) {
echo "cdup successful\n";
} else {
echo "cdup not successful\n";
}
echo ftp_pwd($conn_id); // /
ftp_close($conn_id);
?>`

### See Also

- ftp_chdir()
- ftp_pwd()