The below example doesn't seem to work on a windows based machine so I use this trick instead
<?php
$aPath = explode('/',ftp_pwd($conn_id));
$sHomeDir = str_repeat('../', count($aPath) - 1);
ftp_chdir($conn_id, $sHomeDir);
?>
(PHP 4, PHP 5, PHP 7, PHP 8)
ftp_cdup — Passa alla directory superiore
Passa alla directory superiore.
Example #1 ftp_cdup() example
<?php
// stabilisce la connessione
$conn_id = ftp_connect($ftp_server);
// si collega con nome utente e password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// cambia la directory corrente in html
ftp_chdir($conn_id, 'html');
echo ftp_pwd($conn_id); // /html
// torna alla directory padre
if (ftp_cdup($conn_id)) {
echo "cdup successful\n";
} else {
echo "cdup not successful\n";
}
echo ftp_pwd($conn_id); // /
ftp_close($conn_id);
?>
Restituisce true in caso di successo, false in caso di fallimento.
Vedi anche ftp_chdir().
The below example doesn't seem to work on a windows based machine so I use this trick instead
<?php
$aPath = explode('/',ftp_pwd($conn_id));
$sHomeDir = str_repeat('../', count($aPath) - 1);
ftp_chdir($conn_id, $sHomeDir);
?>ftp_cdup can only up to the parent and if you want test a directory that is not a child then you can't with ftp_cdup ;)