用于Xml解析的带curl的PHP

我正在解析一个GoogleMapAPI来获取latlong表单地址。我成功地获取了xml。如何从xml响应中获取latlong

我的回答是

SimpleXMLElement对象（[status]=>OK[result]=>SimpleXMLElement对象（[type]=>Array（[0]=>Location[1]=>political）[格式化地址]=>New Delhi，Delhi，India[地址分量]=>Array（[0]=>SimpleXMLElement对象（[long_name]=>New Delhi[type]=>Array（[0]=>Location[1]=>political]））[1] =>SimpleXMLElement对象（[long_name]=>West Delhi[short_name]=>West Delhi[type]=>Array（[0]=>administrative_area\u level_2[1]=>political））[2]=>SimpleXMLElement对象（[long_name]=>Delhi[short_name]=>DL[type]=>Array（[0]=>administrative_area\u level_1[1]=>political]）[3]=>SimpleXMLElement对象（[long_name]=>印度[short_name]=>在[type]=>Array（[0]=>country[1]=>political））[geometry]=>SimpleXMLElement对象（[location]=>SimpleXMLElement对象（[lat]=>28.6353080[lng]=>77.2249600）[location_type]=>近似[viewport]=>SimpleXMLElement对象（[southwest]=>SimpleXMLElement对象（[lat]=>28.4010669[lng]=>76.8396999[东北]=>SimpleXMLElement对象（[lat]=>28.8898159[lng]=>77.3418146））[bounds]=>SimpleXMLElement对象（[西南]=>SimpleXMLElement对象（[lat]=>28.4010669[lng]=>76.8396999[东北]=>SimpleXMLElement对象（[lat]=>28.8898159[lng]=>77.3418146）））

我想得到几何->位置->纬度值

帮我解决这个问题

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提前感谢

使用DOM+XPath更容易，DOMXpath:：evaluate（）方法可以从xml中提取标量值：

$xml = <<<'XML'
<GeocodeResponse>
 <status>OK</status>
 <result>
  <geometry>
   <location>
    <lat>37.4217550</lat>
    <lng>-122.0846330</lng>
   </location>
   <location_type>ROOFTOP</location_type>
   <viewport>
    <southwest>
     <lat>37.4188514</lat>
     <lng>-122.0874526</lng>
    </southwest>
    <northeast>
     <lat>37.4251466</lat>
     <lng>-122.0811574</lng>
    </northeast>
   </viewport>
  </geometry>
 </result>
</GeocodeResponse>
XML;

$dom = new DOMDocument();
$dom->loadXml($xml);
$xpath = new DOMXpath($dom);

$lat = $xpath->evaluate('number(/GeocodeResponse/result/geometry/location/lat)');
$lng = $xpath->evaluate('number(/GeocodeResponse/result/geometry/location/lng)');

var_dump($lat, $lng);

float(37.421755)
float(-122.084633)