用PHP解析XML trovit提要

我想解析一个特定的XML提要，但我使用SIMPLEXML获取空值

任何帮助都将不胜感激

这是Trovit XML提要的一个示例

例如，我使用如下文件：

$xml=simplexml_load_文件（'myfile.xml'）； 打印（xml）

大家好，请问这方面有什么帮助吗？是否有任何错误？（尝试使用

ini\u集（'display\u errors'，true）；error\u reporting（E\u ALL）；

）XML本身似乎是有效的-请参阅此处以获取成功解析它的代码：您好。不，我没有得到任何错误。我只得到空值。不太清楚为什么？就像我说的，XML解析很好，所以没有任何错误消息，这里没有太多的信息。你也可以查一下。另外，如果您使用

var\u dump

或

var\u export

而不是

print\u r

，您将看到“空”结果是否为NULL、空数组等。

 <?xml version="1.0" encoding="utf-8"?>
<trovit>
<ad>
    <id><![CDATA[7004578]]></id>
    <url><![CDATA[http://www.yourdomain.co.uk/ad/7004578]]></url>
    <title><![CDATA[2008 Toyota Prius Hybrid]]></title>
    <content><![CDATA[111 Cruise control, Climate control, Front passenger airbag and
side airbags, Front and rear head airbags, Anti-lock brakes, Traction control, Remote central
door locking, Remote control alarm, Immobiliser, Front and rear electric windows, 16" alloy
wheels, Front fog lights, Radio cassette and CD autochanger, Steering wheel mounted controls,
Body coloured bumpers, Electric doormirrors.]]></content>
    <price><![CDATA[10000]]></price>
    <make><![CDATA[Toyota]]></make>
    <model><![CDATA[Prius]]></model>
    <color><![CDATA[Metallic Grey]]></color>
    <year><![CDATA[2008]]></year>
    <city><![CDATA[Bristol]]></city>
    <city_area><![CDATA[Bristol]]></city_area>
    <postcode><![CDATA[]]></postcode>
    <region><![CDATA[Bristol]]></region>
    <mileage unit="kilometers"><![CDATA[10000]]></mileage>
    <doors><![CDATA[5]]></doors>
    <fuel><![CDATA[petrol/ hybrid]]></fuel>
    <transmission><![CDATA[manual]]></transmission>
    <engine_size><![CDATA[1781]]></engine_size>
    <power><![CDATA[75]]></power>
    <seats><![CDATA[5]]></seats>
    <gears><![CDATA[6]]></gears>
    <pictures>
        <picture>
          <picture_url><![CDATA[http://www.yourdomain.co.uk/image1.jpg]]></picture_url>
          <picture_title><![CDATA[front]]></picture_title>
        </picture>
        <picture>
          <picture_url><![CDATA[http://www.yourdomain.co.uk/image2.jpg]]></picture_url>
          <picture_title><![CDATA[interior]]></picture_title>
        </picture>
    </pictures>
    <date><![CDATA[20/01/2011 14:30]]></date>
    <is_new><![CDATA[0]]></is_new>
    <car_type><![CDATA[hatchback]]></car_type>
    <warranty><![CDATA[until 2011]]></warranty>
</ad>

<ad>
    <id><![CDATA[7004579]]></id>
    <url><![CDATA[http://www.yourdomain.co.uk/ad/7004578]]></url>
    <title><![CDATA[2008 Toyota Prius Hybrid]]></title>
    <content><![CDATA[222 Cruise control, Climate control, Front passenger airbag and
side airbags, Front and rear head airbags, Anti-lock brakes, Traction control, Remote central
door locking, Remote control alarm, Immobiliser, Front and rear electric windows, 16" alloy
wheels, Front fog lights, Radio cassette and CD autochanger, Steering wheel mounted controls,
Body coloured bumpers, Electric doormirrors.]]></content>
    <price><![CDATA[210000]]></price>
    <make><![CDATA[Toyota]]></make>
    <model><![CDATA[Prius]]></model>
    <color><![CDATA[Metallic Grey]]></color>
    <year><![CDATA[2008]]></year>
    <city><![CDATA[Bristol]]></city>
    <city_area><![CDATA[Bristol]]></city_area>
    <postcode><![CDATA[]]></postcode>
    <region><![CDATA[Bristol]]></region>
    <mileage unit="kilometers"><![CDATA[10000]]></mileage>
    <doors><![CDATA[5]]></doors>
    <fuel><![CDATA[petrol/ hybrid]]></fuel>
    <transmission><![CDATA[manual]]></transmission>
    <engine_size><![CDATA[1781]]></engine_size>
    <power><![CDATA[75]]></power>
    <seats><![CDATA[5]]></seats>
    <gears><![CDATA[6]]></gears>
    <pictures>
        <picture>
          <picture_url><![CDATA[http://www.yourdomain.co.uk/image1.jpg]]></picture_url>
          <picture_title><![CDATA[front]]></picture_title>
        </picture>
        <picture>
          <picture_url><![CDATA[http://www.yourdomain.co.uk/image2.jpg]]></picture_url>
          <picture_title><![CDATA[interior]]></picture_title>
        </picture>
    </pictures>
    <date><![CDATA[20/01/2011 14:30]]></date>
    <is_new><![CDATA[0]]></is_new>
    <car_type><![CDATA[hatchback]]></car_type>
    <warranty><![CDATA[until 2011]]></warranty>
</ad>
</trovit>