一个接口，能得到返回的xml文件，如何提取有用的内容？
接口调用后，$result= 能得到以下内容：
stdClass Object
(
[out] => <?xml version="1.0" encoding="GB2312"?>
<result>
<flights>
<flight orgCity="SHA" departTerm="T2" dstCity="CAN" arrivalTerm="--" airComp="MU" flightno="MU5307" planeType="320" startTime="2012-07-20 07:30" endTime="2013-07-20 09:50" stopNumber="0" mealCode="S">
<cabins><cabin cabinCode="Y" cabinType="0" cabinDiscount="100" cabinName="经济舱" cabinSales="A" ibePrice="1280" encryptString="79fccacuigjjdskf" /></cabins>
<cabin cabinCode="A" cabinType="0" cabinDiscount="250" cabinName="头等折扣舱" cabinSales="A" ibePrice="2830" encryptString="1c9cc629e7f7b1a" ></cabin>
? </flight>
</flights>
? <is_success>T</is_success>
</result>
)
以前做这直接读取 xml的，可这种带了一个stdClass Object( [out] =>
不知道应该如何读到各节点内容了
[解决办法]
如果你对对象操作不熟悉，可以先转换为数组，这样会方便一些。
你获取的对象很简单， $result->out 就是这个XML字符串，若是想提取其中的内容，可以尝试字符串提取，或者解析XML为对象再转数组（推荐）。
http://www.php.net/manual/zh/language.oop5.properties.php
SimpleXMLElement Object
(
[flights] => SimpleXMLElement Object
(
[flight] => SimpleXMLElement Object
(
[@attributes] => Array
(
[orgCity] => SHA
[departTerm] => T2
[dstCity] => CAN
[arrivalTerm] => --
[airComp] => MU
[flightno] => MU5307
[planeType] => 320
[startTime] => 2012-07-20 07:30
[endTime] => 2013-07-20 09:50
[stopNumber] => 0
[mealCode] => S
)
[cabins] => SimpleXMLElement Object
(
[0] => SimpleXMLElement Object
(
[@attributes] => Array
(
[cabinCode] => Y
[cabinType] => 0
[cabinDiscount] => 100
[cabinName] => 经济舱
[cabinSales] => A
[ibePrice] => 1280
[encryptString] => 79fccacuigjjdskf
)
)
)
[cabin] => SimpleXMLElement Object
(
[@attributes] => Array
(
[cabinCode] => A
[cabinType] => 0
[cabinDiscount] => 250
[cabinName] => 头等折扣舱
[cabinSales] => A
[ibePrice] => 2830
[encryptString] => 1c9cc629e7f7b1a
)
)
)
)
[is_success] => T
)
$xml = simplexml_load_string($result->out);
// 转换对象所有属性为数组
function obj2arr($obj)
{
$arr = get_object_vars($obj);
foreach($arr as &$child){
is_object($child) && ( $child = obj2arr($child) );
}
return $arr;
}
$data = obj2arr($xml);
