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下面的代码：PHP的SimpleXML获得基于其他属性值值
// Get sub category:
$xml = simplexml_load_string($update_booking_info->XML);
给了我这样的：（正确到目前为止）
SimpleXMLElement Object
(
[@attributes] => Array
(
[sub_category_id] => 1
)
[LocationClass] => Array
(
[0] => SimpleXMLElement Object
(
[@attributes] => Array
(
[Type] => LocationIdentification
)
[Lat] => 0
[Long] => 0
[VZeroQuestionLifeTimeKey] => SimpleXMLElement Object
(
)
[VZeroQuestionsCollectionID] => SimpleXMLElement Object
(
)
[Name] => FromLocation
[Address] => Some address 1
)
[1] => SimpleXMLElement Object
(
[@attributes] => Array
(
[Type] => LocationIdentification
)
[Lat] => 0
[Long] => 0
[VZeroQuestionLifeTimeKey] => SimpleXMLElement Object
(
)
[VZeroQuestionsCollectionID] => SimpleXMLElement Object
(
)
[Name] => ToLocation
[Address] => Some Address 2
)
)
[DateTimeInfo] => SimpleXMLElement Object
(
[@attributes] => Array
(
[Type] => DateTime
)
[Lat] => 0
[Long] => 0
[VZeroQuestionLifeTimeKey] => 3842
[VZeroQuestionsCollectionID] => 916
[Name] => PickupDate
[DateTime] => 2014-03-28 00:59:08
)
[TextField] => Array
(
[0] => SimpleXMLElement Object
(
[Lat] => 0
[Long] => 0
[VZeroQuestionLifeTimeKey] => 3846
[VZeroQuestionsCollectionID] => 916
[Name] => Cellphone
[Text] => 1234567891
)
[1] => SimpleXMLElement Object
(
[Lat] => 0
[Long] => 0
[VZeroQuestionLifeTimeKey] => 3843
[VZeroQuestionsCollectionID] => 916
[Name] => ContactName
[Text] => John Smit
)
[2] => SimpleXMLElement Object
(
[Lat] => 0
[Long] => 0
[VZeroQuestionLifeTimeKey] => 3848
[VZeroQuestionsCollectionID] => 916
[Name] => NumberPassengers
[Text] => 2
)
)
）
我现在需要查询上面的数组获取基于该节点内的名称的地址/日期时间/文本值：
因此，如果我正在寻找比如说DateTimeInfo中的DateTime值，我需要查询Name（PickupDate），它将是唯一的并获取相关属性。我已经有一个变量，告诉我该节点的“值”属性是什么（如DateTime，Text等），所以我只需要知道如何查询XML以获取正确的节点并找到其中的值。如果需要，我也很乐意使用另一位读者。
任何想法？
你做到这一点与一些所谓的XPath。它在SimpleXML ['SimpleXMLElement :: xpath（）']（http://php.net/simplexmlelement.xpath）中可用。对于你的问题，在SimpleXML中，发布print_r/var_dump的输出是没有用的。请逐字提供XML，以便清楚了解您操作的XML。如果尺寸较大，请将它缩小。 – hakre