在使用 PHP SoapClient发送 SOAP 请求时遇到此错误：
Fatal error: Uncaught SoapFault exception: [HTTP] Could not connect to host in /var/www/phpwebservice/soap-client.php:6
Stack trace:
#0 [internal function]: SoapClient->__doRequest('__call('getCatalogEntry', Array)
#2 /var/www/phpwebservice/soap-client.php(6): SoapClient->getCatalogEntry('catalog1')
#3 {main} thrown in /var/www/phpwebservice/soap-client.php on line 6
将文件直接移动到/var/www/下时，脚本工作正常：
http://localhost/soap-client.php
但是当我将其移动到名为phpwebservice的子文件夹时，出现了该错误。子文件夹是否如下所示并不重要：
http://localhost/phpwebservice/soap-client.php
或者如果我为它制作了一个虚拟主机：
http://phpwebservice/soap-client.php
soap-client.php的内容：
$client = new SoapClient("catalog.wsdl");
$catalogId = 'catalog1';
$response = $client->getCatalogEntry($catalogId);
echo $response;
SOAP 服务器.php：
function getCatalogEntry($catalogId){
if($catalogId == 'catalog1')
return "<html>
<head>
<title>catalog</title>
</head
<body>
<p> </p>
<table border=1>
<tr>
<th>catalogid</th>
<th>journal</th>
<th>section</th>
<th>edition</th>
<th>title</th>
<th>author</th>
</tr>
<tr>
<td>catalog1</td>
<td>ibm developerworks</td>
<td>xml</td>
<td>october 2005</td>
<td>jaxp validation</td>
<td>brett mclaughlin</td>
</tr>
</table>
</body>
</html>";
elseif($catalogId == 'catalog2')
return "<html>
<head>
<title>catalog</title>
</head>
<body>
<p> </p>
<table border=1>
<tr>
<th>catalogid</th>
<th>journal</th>
<th>section</th>
<th>edition</th>
<th>title</th>
<th>author</th>
</tr>
<tr>
<td>catalog1</td>
<td>ibm developerworks</td>
<td>xml</td>
<td>july 2006</td>
<td>the java xpath api</td>
<td>elliotte harold</td>
</tr>
</table>
</body>
</html>";
}
ini_set("soap.wsdl_cache_enabled", "0");
$server = new soapserver("catalog.wsdl");
$server->addfunction("getCatalogEntry");
$server->handle();
catalog.wsdl：
<?xml version ='1.0' encoding ='UTF-8' ?>
<definitions name='Catalog'
targetnamespace='http://phpwebservice/catalog'
xmlns:tns='http://phpwebservice/catalog'
xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/'
xmlns:xsd='http://www.w3.org/2001/XMLSchema'
xmlns:soapenc='http://schemas.xmlsoap.org/soap/encoding/'
xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/'
xmlns='http://schemas.xmlsoap.org/wsdl/'>
<message name='getCatalogRequest'>
<part name='catalogId' type='xsd:string'/>
</message>
<message name='getCatalogResponse'>
<part name='Result' type='xsd:string'/>
</message>
<portType name='CatalogPortType'>
<operation name='getCatalogEntry'>
<input message='tns:getCatalogRequest'/>
<output message='tns:getCatalogResponse'/>
</operation>
</portType>
<binding name='CatalogBinding' type='tns:CatalogPortType'>
<soap:binding style='rpc' transport='http://schemas.xmlsoap.org/soap/http'/>
<operation name='getCatalogEntry'>
<soap:operation soapAction='urn:phpwebservice-catalog#getCatalogEntry'/>
<input>
<soap:body use='encoded' namespace='urn:phpwebservice-catalog' encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
</input>
<output>
<soap:body use='encoded' namespace='urn:phpwebservice-catalog' encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
</output>
</operation>
</binding>
<service name='CatalogService'>
<port name='CatalogPort' binding='CatalogBinding'>
<soap:address location='http://phpwebservice/soap-server.php'/>
</port>
</service>
</definitions>
谢谢。
如果您在开发环境中，最好在 php.ini 中设置soap.wsdl_cache_enabled=0。否则，您必须在对WSDL文件进行任何更改后手动删除WSDL缓存（通常位于soap.wsdl_cache_dir定义的目录中）
您还可以参考：Soap故障异常：无法连接到主机
当我的SoapClient选项中未指定connection_timeout时，我遇到了特定 SOAP 服务的此问题。将超时设置为 1 为我解决了这个问题。
$wsdl = 'https://...';
$options [
'trace' => true,
'exceptions' => true,
'connection_timeout' => 1
];
$client = new SoapClient($wsdl, $options);
没
关系，我只是从 wsdl 文件中的每一行中删除/catalog，无论如何，现在一切都很好。