我正在使用基于 SOAP 的 API 将现有软件包与第三方软件包集成。但是，我无法从最后一个请求生成 XML 以帮助进行故障排除，因为我不相信实际会进行调用。我能想出的唯一合乎逻辑的解释是 PHP 在实际发送请求之前根据 WSDL 验证请求。这个问题不需要代码，我已经尝试了太多的变体来选择一两个样本来分享。我已经用一个有效的 SOAP 调用替换了错误的 SOAP 调用，并且 XML 按预期成功生成并返回。
有谁知道如何确定 PHP 是否正在发出请求并且请求失败，或者是否有可能让 PHP 使针对 WSDL 的请求无效并且根本无法进行调用？
如果您有任何疑问，请随时提问。感谢您的帮助！
看起来您的问题是：您正在尝试通过服务器端的 PHP 进行 SOAP 调用，但您不知道是否进行了调用。
如果您想检查是否进行了调用，您可以将 SOAP 对象替换为您的模拟对象，并在模拟对象中尝试查看是否进行了调用。
尝试调试您的脚本，看看它是否真的发出请求，PHP 的SoapClient对象使它变得非常容易。看看SoapClient::_ getLastRequest和SoapClient:: _getLastResponse。
如果你想要一些更低的东西，ngrep是一个很好的简单工具，用于密切关注网络上发生的事情。
使用这个简单的 PHP 脚本...
<?php
$client = new SoapClient('http://www.27seconds.com/kb/ws/Articles.asmx?WSDL');
$article = $client->GetArticle(array('articleId' => 7));
执行ngrep port 80 &然后执行上述脚本将转储流量，它应该看起来像这样......
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..
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POST /kb/ws/Articles.asmx HTTP/1.1..Host: www.27seconds.com..Connection: Keep-Alive..User-Agent: PHP-SOAP/5.3.10-1ubuntu3.6..Content-Type: text/xml; charset=utf-8..
SOAPAction: "http://dsetzer.27seconds.com/ws/GetArticle"..Content-Length: 279....<?xml version="1.0" encoding="UTF-8"?>.<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://sc
hemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://dsetzer.27seconds.com/ws/"><SOAP-ENV:Body><ns1:GetArticle><ns1:articleId>7</ns1:articleId></ns1:GetArticle></SOA
P-ENV:Body></SOAP-ENV:Envelope>.
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......
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HTTP/1.1 200 OK..Date: Fri, 21 Jun 2013 21:11:21 GMT..Server: Microsoft-IIS/6.0..X-Powered-By: ASP.NET..X-AspNet-Version: 2.0.50727..Cache-Control: private, max-age
=0..Content-Type: text/xml; charset=utf-8..Content-Length: 4804....<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/
envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><GetArticleResponse xmlns="http://dsetzer.2
7seconds.com/ws/"><GetArticleResult><xs:schema id="NewDataSet" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msda
ta"><xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true"><xs:complexType><xs:choice minOccurs="0" maxOccurs="unbounded"><xs:element
name="Articles"><xs:complexType><xs:sequence><xs:element name="ArticleID" type="xs:int" minOccurs="0" /><xs:element name="ArticleTitle" type="xs:string" minOccurs="
0" /><xs:element name="ArticleSummary" type="xs:string" minOccurs="0" /><xs:element name="ArticleAuthorID" type="xs:int" minOccurs="0" /><xs:element name="ArticlePu
blishDate" type="xs:dateTime" minOccurs="0" /><xs:element name="AuthorName" type="xs:string" minOccurs="0" /><xs:element name="AuthorEmail" type="xs:string" minOccu
rs="0" /><xs:element name="AuthorHomepage" type="xs:string" minOccurs="0" /><xs:element name="ArticleBody" t
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ype="xs:string" minOccurs="0
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" /><xs:element name="ArticleRating" type="xs:double" minOccurs="0" /></xs:sequence></xs:complexType></xs:element><xs:element name="Authors"><xs:complexType><xs:seq
uence><xs:element name="AuthorID" type="xs:int" minOccurs="0" /><xs:element name="AuthorName" type="xs:string" minOccurs="0" /><xs:element name="AuthorEmail" type="
xs:string" minOccurs="0" /></xs:sequence></xs:complexType></xs:element><xs:element name="Applicables"><xs:complexType><xs:sequence><xs:element name="appID" type="xs
:int" minOccurs="0" /><xs:element name="appDescr" type="xs:string" minOccurs="0" /></xs:sequence></xs:complexType></xs:element><xs:element name="Keywords"><xs:compl
exType><xs:sequence><xs:element name="KeyID" type="xs:int" minOccurs="0" /><xs:element name="KeyArticleId" type="xs:int" minOccurs="0" /><xs:element name="Keyword"
type="xs:string" minOccurs="0" /></xs:sequence></xs:complexType></xs:element></xs:choice></xs:complexType></xs:element></xs:schema><diffgr:diffgram xmlns:msdata="ur
n:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1"><NewDataSet xmlns=""><Articles diffgr:id="Articles1" msdata:rowOrder="0
"><ArticleID>7</ArticleID><ArticleTitle>Handle double quotes in a form.</ArticleTitle><ArticleSummary>When pulling data from a form or database you can into trouble
if the data contains a double quote (&quot;).</ArticleSummary><ArticleAuthorID>1</ArticleAuthorID><Arti
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clePublishDate>2002-03-05T11
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:40:54-05:00</ArticlePublishDate><AuthorName>Douglas L. Setzer, II</AuthorName><AuthorEmail>dsetzer@27seconds.com</AuthorEmail><AuthorHomepage>http://www.27seconds.
com</AuthorHomepage><ArticleBody><p>..When I was dynamically populating form values, I found that if the data has a double quote (&qout;) in it, it would
cut off the data entered in the form...</p>....<p>..To solve this, I found that I could simple Server.HtmlEncode the value and all was well. Except whe
n I was populating from a database and the data was NULL which caused an error for Server.HtmlEncode. So, I whipped up this little function:..</p>....<p&g
t;..<div style="width=450;height=300;overflow=scroll;">..<pre>..Function formEncode(formValue)..Dim m_sOut.. m_sOut = formValue.....If IsNull(m_sOut)
Then....m_sOut = ""...Else....m_sOut = Server.HTMLEncode(m_sOut)...End If.....formEncode = m_sOut....End Function..</pre>..</div>..</p>....<p&
gt;This is used when you assign a value to the form field:</p>....<p>..<div style="width=450;height=300;overflow=scroll;">..<pre>..&lt;i
nput type="text" name="example" value="&lt;%=formEncode("The ""test"" is good.") %&gt;"&gt;..</pre>..</div>..</p></ArticleBody></Artic
les><Authors diffgr:id="Authors1" msdata:rowOrder="0"><AuthorID>1</AuthorID><AuthorName>Douglas L. Setzer, I
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I</AuthorName><AuthorEmail>d
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setzer@27seconds.com</AuthorEmail></Authors><Applicables diffgr:id="Applicables1" msdata:rowOrder="0"><appID>1</appID><appDescr>Active Server Pages (ASP)</appDescr>
</Applicables><Keywords diffgr:id="Keywords1" msdata:rowOrder="0"><KeyID>386</KeyID><KeyArticleId>7</KeyArticleId><Keyword>CHR(34)</Keyword></Keywords><Keywords dif
fgr:id="Keywords2" msdata:rowOrder="1"><KeyID>388</KeyID><KeyArticleId>7</KeyArticleId><Keyword>DOUBLE QUOTE</Keyword></Keywords><Keywords diffgr:id="Keywords3" msd
ata:rowOrder="2"><KeyID>387</KeyID><KeyArticleId>7</KeyArticleId><Keyword>QUOTE</Keyword></Keywords></NewDataSet></diffgr:diffgram></GetArticleResult></GetArticleRe
sponse></soap:Body></soap:Envelope>
#root@precise64:~# ##
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......
注意到 SOAP 调用了吗？有很多其他方法可以做到这一点，但调试应该是你的第一站。:)
祝你好运，
安东尼。