Вы можете использовать PHP FTP Capabilities для удаленного подключения к серверу и получения списка каталогов:
// set up basic connection
$conn_id = ftp_connect('otherserver.example.com');
// login with username and password
$login_result = ftp_login($conn_id, 'username', 'password');
// check connection
if ((!$conn_id) || (!$login_result)) {
echo "FTP connection has failed!";
exit;
}
// upload the file
$upload = ftp_put($conn_id, $destination_file, $source_file, FTP_BINARY);
// check upload status
if (!$upload) {
echo "FTP upload has failed!";
} else {
echo "Uploaded $source_file to $ftp_server as $destination_file";
}
// Retrieve directory listing
$files = ftp_nlist($conn_id, '/remote_dir');
// close the FTP stream
ftp_close($conn_id);