Ftp::__call PHP Method

    public function __call($name, $args)
    {
        $name = strtolower($name);
        $silent = strncmp($name, 'try', 3) === 0;
        $func = $silent ? substr($name, 3) : $name;
        $func = 'ftp_' . (isset(self::$aliases[$func]) ? self::$aliases[$func] : $func);
        if (!function_exists($func)) {
            throw new Exception("Call to undefined method Ftp::{$name}().");
        }
        $this->errorMsg = NULL;
        set_error_handler(array($this, '_errorHandler'));
        if ($func === 'ftp_connect' || $func === 'ftp_ssl_connect') {
            $this->state = array($name => $args);
            $this->resource = call_user_func_array($func, $args);
            $res = NULL;
        } elseif (!is_resource($this->resource)) {
            restore_error_handler();
            throw new FtpException("Not connected to FTP server. Call connect() or ssl_connect() first.");
        } else {
            if ($func === 'ftp_login' || $func === 'ftp_pasv') {
                $this->state[$name] = $args;
            }
            array_unshift($args, $this->resource);
            $res = call_user_func_array($func, $args);
            if ($func === 'ftp_chdir' || $func === 'ftp_cdup') {
                $this->state['chdir'] = array(ftp_pwd($this->resource));
            }
        }
        restore_error_handler();
        if (!$silent && $this->errorMsg !== NULL) {
            if (ini_get('html_errors')) {
                $this->errorMsg = html_entity_decode(strip_tags($this->errorMsg));
            }
            if (($a = strpos($this->errorMsg, ': ')) !== FALSE) {
                $this->errorMsg = substr($this->errorMsg, $a + 2);
            }
            throw new FtpException($this->errorMsg);
        }
        return $res;
    }