SimpleXML SOAP 响应命名空间问题

SimpleXML SOAP response Namespace issues(SimpleXML SOAP 响应命名空间问题)

问题描述

在为此花费了几个令人沮丧的小时后，我正在寻求您的帮助.

我正在尝试从 SOAP 响应中获取特定节点的内容.

回应是

<?xml version="1.0" encoding="UTF-8"?><env:信封 xmlns:env="<a href="http://www.w3.org/2003/05/soap-envelope">http://www.w3.org/2003/05/肥皂信封</a>"<xmlns:ns1="<a href="http://soap.xxxxxx.co.uk/">http://soap.xxxxxx.co.uk/</a>"><env:身体><ns1:PlaceOrderResponse><xxxxxOrderNumber></xxxxxOrderNumber><错误数组><错误><错误代码>24</错误代码><ErrorText>+client+order+number+3002254+is+already+in+use</ErrorText></错误><错误><错误代码>1</错误代码><ErrorText>正在中止</ErrorText></错误></错误数组></ns1:PlaceOrderResponse></env:正文></env:信封>
我正在尝试获取 <ErrorArray> 的节点和子节点.由于 XML 包含命名空间 

$XmlArray = new SimpleXMLElement($XmlStr);foreach ($XmlArray->env:Envelope->env:Body->ns1:PlaceOrderResponse->ErrorArray->Error as $Error){echo $Error->ErrorCode."<br/>";}
不起作用.我已经阅读了许多文章，例如
http://www.sitepoint.com/blogs/2005/10/20/simplexml-and-namespaces/
http://blog.stuartherbert.com/php/2007/01/07/using-simplexml-to-parse-rss-feeds/
还有关于这个网站的大约 20 个问题，很遗憾没有帮助.
即使写作，
$XmlArray = new SimpleXMLElement($XmlStr);echo "<br/><br/><pre>
";print_r($XmlArray);echo "<pre><br/><br/>
";
给予
SimpleXMLElement 对象()
这让我想知道肥皂响应 ($XmlStr) 是否实际上是 SimpleXMLElement 的有效输入.
好像是行
$XmlArray = new SimpleXMLElement($XmlStr);
没有按照我的预期去做.
非常欢迎任何有关如何从上述 XML 中获取节点的帮助.
显然，让它发挥作用(有一个有效的例子)是我在短期内需要的，但如果有人能帮助我理解我做错了什么，从长远来看会更好.
干杯.斯图
 解决方案 
你必须使用 SimpleXMLElement::children()，尽管此时使用 XPath 可能会更容易.
children("env", true)->Body->children("ns1", true)->PlaceOrderResponse->children()->ErrorArray->Error;foreach ($t as $error) {echo $error->ErrorCode, " " , $error->ErrorText, "<br/>";}
给予:
<上一页>24 The+client+order+number+3002254+is+already+in+use1 中止

After spending SEVERAL frustrated hours on this I am asking for your help.

I am trying to get the content of particular nodes from a SOAP response.

The response is

<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="<a href="http://www.w3.org/2003/05/soap-envelope">http://www.w3.org/2003/05/soap-envelope</a>"<xmlns:ns1="<a href="http://soap.xxxxxx.co.uk/">http://soap.xxxxxx.co.uk/</a>">
    <env:Body>
        <ns1:PlaceOrderResponse>
            <xxxxxOrderNumber></xxxxxOrderNumber>
            <ErrorArray>
                <Error>
                    <ErrorCode>24</ErrorCode>
                    <ErrorText>The+client+order+number+3002254+is+already+in+use</ErrorText>
                </Error>
                <Error>
                    <ErrorCode>1</ErrorCode>
                    <ErrorText>Aborting</ErrorText>
                </Error>
            </ErrorArray>
        </ns1:PlaceOrderResponse>
    </env:Body>
</env:Envelope>

I am trying to get at the nodes and children of <ErrorArray>. Because of the XML containing namespaces

$XmlArray   = new SimpleXMLElement($XmlStr);

foreach ($XmlArray->env:Envelope->env:Body->ns1:PlaceOrderResponse->ErrorArray->Error as $Error)
{
    echo $Error->ErrorCode."<br />";
}

doesn't work. I have read a number of articles such as

• http://www.sitepoint.com/blogs/2005/10/20/simplexml-and-namespaces/
• http://blog.stuartherbert.com/php/2007/01/07/using-simplexml-to-parse-rss-feeds/

and about 20 questions on this site, which unfortunately are not helping.

Even writing,

$XmlArray   = new SimpleXMLElement($XmlStr);

echo "<br /><br /><pre>
";
print_r($XmlArray);
echo "<pre><br /><br />
";

gives

SimpleXMLElement Object
(
)

which makes me wonder if the soap response ($XmlStr) is actually a valid input for SimpleXMLElement.

It seems that the line

$XmlArray   = new SimpleXMLElement($XmlStr);

is not doing what I expect it to.

Any help on how to get the nodes from the XML above would be very welcome.

Obviously getting it to work (having a working example) is what I need in the short term, but if someone could help me understand what I am doing wrong would be better in the long term.

Cheers. Stu

You have to use SimpleXMLElement::children(), though at this point it would probably be easier to use XPath.

<?php
    $XmlStr = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope"  xmlns:ns1="http://soap.xxxxxx.co.uk/" >
    <env:Body>
        <ns1:PlaceOrderResponse>
            <xxxxxOrderNumber></xxxxxOrderNumber>
            <ErrorArray>
                <Error>
                    <ErrorCode>24</ErrorCode>
                    <ErrorText>The+client+order+number+3002254+is+already+in+use</ErrorText>
                </Error>
                <Error>
                    <ErrorCode>1</ErrorCode>
                    <ErrorText>Aborting</ErrorText>
                </Error>
            </ErrorArray>
        </ns1:PlaceOrderResponse>
    </env:Body>
</env:Envelope>
XML;

    $XmlArray   = new SimpleXMLElement($XmlStr);

    $t = $XmlArray->children("env", true)->Body->
        children("ns1", true)->PlaceOrderResponse->
        children()->ErrorArray->Error;
    foreach ($t as $error) {
        echo $error->ErrorCode, " " , $error->ErrorText, "<br />";
    } 

gives:

24 The+client+order+number+3002254+is+already+in+use
1 Aborting

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