ftp_cdup

(PHP 4, PHP 5, PHP 7, PHP 8)

ftp_cdup — Changes to the parent directory

Description

ftp_cdup(FTP\Connection$ftp): bool

Changes to the parent directory.

Parameters

ftp: An FTP\Connection instance.

Return Values

Returns true on success or false on failure.

Changelog

Version	Description
8.1.0	The `ftp` parameter expects an FTP\Connection instance now; previously, a resource was expected.

Examples

Example #1 ftp_cdup() example

<?php
// set up basic connection
$ftp = ftp_connect($ftp_server);

// login with username and password
$login_result = ftp_login($ftp, $ftp_user_name, $ftp_user_pass);

// change the current directory to html
ftp_chdir($ftp, 'html');

echo ftp_pwd($ftp); // /html 

// return to the parent directory
if (ftp_cdup($ftp)) { 
 echo "cdup successful\n";
} else {
 echo "cdup not successful\n";
}

echo ftp_pwd($ftp); // /

ftp_close($ftp);
?>