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特定の XML フィードを解析したいのですが、SIMPLEXML を使用して空の値を取得しています

どんな助けでも本当に感謝します。

これは Trovit XML フィードの例です。

たとえば、以下のファイルを次のように使用します。

$xml = simplexml_load_file('myfile.xml'); print_r($xml);

 <?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>
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