(PHP 4, PHP 5, PHP 7, PHP 8)
ftp_chdir — Changes the current directory on a FTP server
Changes the current directory to the specified one.
   Returns true on success or false on failure.
   If changing directory fails, PHP will also throw a warning.
  
| Version | Description | 
|---|---|
| 8.1.0 | The ftpparameter expects an FTP\Connection
  instance now; previously, a resource was expected. | 
Example #1 ftp_chdir() example
<?php
// set up basic connection
$ftp = ftp_connect($ftp_server); 
// login with username and password
$login_result = ftp_login($ftp, $ftp_user_name, $ftp_user_pass); 
// check connection
if ((!$ftp) || (!$login_result)) {
    die("FTP connection has failed !");
}
echo "Current directory: " . ftp_pwd($ftp) . "\n";
// try to change the directory to somedir
if (ftp_chdir($ftp, "somedir")) {
    echo "Current directory is now: " . ftp_pwd($ftp) . "\n";
} else { 
    echo "Couldn't change directory\n";
}
// close the connection
ftp_close($ftp);
?>