尝试使用此XPath:

Try this XPath:

/object/data[@type="me"]

所以:

$myDataObjects = $simplexml->xpath('/object/data[@type="me"]');

如果object不是文档的根目录，请改用//object/data[@type="me"].

And if object is not the root of your document, use //object/data[@type="me"] instead.