emmanuelroecker / php-sync-sftp

        $this->getFiles($dst, "", $files, $dirs);

        // delete on ftp server, files not present in local directory

        foreach ($files as $name => $raw) {

            if (!file_exists($src . $name)) {

                $filepathFtp = $dst . strtr($name, ["\\" => "/"]);

                if ($syncop) {

                    $syncop(self::DELETE_FILE, $filepathFtp);

                }

                $this->sftp->delete($filepathFtp);

            }

        }

        // delete on ftp server, unknowns directories

        $dirs = array_reverse($dirs);

        // delete on ftp server, unknowns directories

        $dirs = array_reverse($dirs);

        foreach ($dirs as $name => $raw) {

            if (!file_exists($src . $name)) {

                $filepathFtp = $dst . strtr($name, ["\\" => "/"]);

                if ($syncop) {

                    $syncop(self::DELETE_DIR, $filepathFtp);

                }

                $this->sftp->rmdir($filepathFtp);

            }

        }        

    }