微信公众平台接口教程：获取用户发送的地理位置xml

 1 <xml>
 2 <ToUserName><![CDATA[toUser]]></ToUserName>
 3 <FromUserName><![CDATA[fromUser]]></FromUserName>
 4 <CreateTime>1351776360</CreateTime>
 5 <MsgType><![CDATA[location]]></MsgType>
 6 <Location_X>23.134521</Location_X>
 7 <Location_Y>113.358803</Location_Y>
 8 <Scale>20</Scale>
 9 <Label><![CDATA[位置信息]]></Label>
10 </xml>

if (!empty($postStr)){
                
                $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $fromUsername = $postObj->FromUserName;
                $toUsername = $postObj->ToUserName;
              $type=$postObj->MsgType;
              $customrevent=$postObj->Event;
              $latitude = $postObj->Location_X;
              $longitude = $postObj->Location_Y;
                $keyword = trim($postObj->Content);
                $time = time();
                $textTpl = "<xml>
              <ToUserName><![CDATA[%s]]></ToUserName>
              <FromUserName><![CDATA[%s]]></FromUserName>
              <CreateTime>%s</CreateTime>
              <MsgType><![CDATA[%s]]></MsgType>
              <Content><![CDATA[%s]]></Content>
              <FuncFlag>0</FuncFlag>
              </xml>";
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case "location":
          
$contentStr="你的纬度是{$latitude},你的经度是{$longitude},我已经锁定！准备发射爱国者捣蛋！";
        
break;