Php SimpleXml访问xml节点的问题

我在访问特定xml文件的节点时遇到严重问题：

通过打印，我得到以下结果：

SimpleXMLElement Object
(
    [RecordSet] => SimpleXMLElement Object
        (
            [@attributes] => Array
                (
                    [dataSource] => testdatabase
                    [totalRecordCount] => 3573
                )

            [Record] => Array
                (
                    [0] => SimpleXMLElement Object
                        (
                            [@attributes] => Array
                                (
                                    [counter] => 1
                                )

                            [Fields] => SimpleXMLElement Object
                                (
                                    [Field] => Array
                                        (
                                            [0] => Barcelona
                                            [1] => 1
                                        )

                                )

                        )

                    [1] => SimpleXMLElement Object
                        (
                            [@attributes] => Array
                                (
                                    [counter] => 2
                                )

                            [Fields] => SimpleXMLElement Object
                                (
                                    [Field] => Array
                                        (
                                            [0] => Cádiz
                                            [1] => 2
                                        )

                                )

                        )

                )

        )

我试图通过命令访问 打印

$xml->recordset->record[0]->fields->field[0]
但我只得到一个错误：

Notice: Trying to get property of non-object in /Applications/MAMP/htdocs/test.php on line 18

谁能帮我一下吗。
提前谢谢。
。试一试

谢谢，我对这东西还不太熟悉。对不起，我的问题很琐碎：-）
$xml->RecordSet->Record[0]->Fields->Field[0]; // Barcelona