SOAP PHP fault parsing WSDL: failed to load external entity?

问题

I\'m trying to run a web service using PHP & SOAP, but all I\'m getting so far is this:

(SoapFault)[2] message which states: \'SOAP-ERROR: Parsing WSDL: Couldn\'t load from \'http://localhost/MyRegistration/login.xml\' : failed to load external entity \"http://localhost/MyRegistration/login.xml\"

I\'ve tried changing localhost to 127.0.0.1, but that makes no difference. login is actually a wsdl file, but if I put login.wsdl in the SOAPClient constructor, it says \"\'looks like we got no XML document\'\" instead.

Here is my code for the SOAP Client (register_client.php):

<?php
try
{
    $sClient = new SoapClient(\'http://127.0.0.1/MyRegistration/login.wsdl\');    

    $param1 = $_POST[\"regname\"];
    $param2 = $_POST[\"regpass1\"];

    $response = $sClient->loginVerify($param1, $param2);    

    var_dump($response);
}
catch(SoapFault $e)
{
    var_dump($e);
}
?>

And here is the login.wsdl file:

<?xml version=\"1.0\"?>
<definitions name=\"LoginVal\" 
    targetNamespace=\"urn:LoginVal\" 
    xmlns:tns=\"urn:LoginVal\"  
    xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" 
    xmlns:soap=\"http://schemas.xmlsoap.org/wsdl/soap/\" 
    xmlns:soapenc=\"http://schemas.xmlsoap.org/soap/encoding/\" 
    xmlns:wsdl=\"http://schemas.xmlsoap.org/wsdl/\" 
    xmlns=\"http://schemas.xmlsoap.org/wsdl/\">
  <types>
<xsd:schema xmlns=\"http://www.w3.org/2001/XMLSchema\" targetNamespace=\"urn:Login\">
  <xsd:element name=\"getName\" type=\"xsd:string\" />
<xsd:element name=\"getPass\" type=\"xsd:string\" />
  <xsd:element name=\"LoginResponse\" type=\"xsd:string\" />          
</xsd:schema>           
  </types>

  <message name=\"loginVerify\">
<part name=\"username\" type=\"tns:getName\" />
<part name=\"password\" type=\"tns:getPass\" />
  </message>

  <message name=\"doLoginResponse\">
<part name=\"return\" type=\"tns:LoginResponse\" />
  </message>  

  <portType name=\"LoginPort\">
    <operation name=\"loginVerify\">
  <input message=\"tns:loginVerify\" />
  <output message=\"tns:doLoginResponse\" />
    </operation>
  </portType>

  <binding name=\"LoginBinding\" type=\"tns:LoginPort\">
    <soap:binding style=\"rpc\" transport=\"http://schemas.xmlsoap.org/soap/http\" />
  <operation name=\"loginVerify\">
    <soap:operation soapAction=\"urn:LoginAction\" />
    <input>
      <soap:body use=\"encoded\" namespace=\"urn:Login\" encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" />         
    </input>
    <output>
      <soap:body use=\"encoded\" namespace=\"urn:Login\" encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" />         
    </output>
  </operation>
  </binding>

  <service name=\"LoginService\">
    <port name=\"LoginPort\" binding=\"tns:LoginBinding\">
  <soap:address location=\"http://localhost/MyRegistration/register.php\" />
    </port>
  </service>

</definitions>

And I\'m not sure if this is involved, so I\'m providing the code for the SOAP Server register.php:

<?php
if(!extension_loaded(\"soap\"))
{
    dl(\"php_soap.dll\");
}

ini_set(\"soap.wsdl_cache_enabled\", \"0\");
$server = new SoapServer(\"login.wsdl\", array(\'uri\'=>\'http://127.0.0.1/MyRegistration\'))

public function loginVerify($username, $password)
{
    if($_POST[\"regname\"] && $_POST[\"regemail\"] && $_POST[\"regpass1\"] && $_POST[\"regpass2\"] )
    {
        if($_POST[\"regpass1\"] == $_POST[\"regpass2\"])
        {
            $servername = \"localhost\";
            $username = \"root\";
            $password = \"Hellfire\";

            $conn = mysql_connect($servername,$username,\"Hellfire\")or die(mysql_error());

            mysql_select_db(\"soap\",$conn);

            $sql = \"insert into users (name,email,password)values(\'$_POST[regname]\',\'$_POST[regemail]\',\'$_POST[regpass1]\')\";

            $result = mysql_query($sql,$conn) or die(mysql_error());

            return \"You have registered sucessfully\";

            //print \"<a href=\'index.php\'>go to login page</a>\";
        }
        else return \"passwords dont match\";
    }
    else return \"invalid data\";
}

$server->AddFunction(\"loginVerify\");
$server->handle();
?>

I\'m sorry if I\'m giving unnecessary information, but I\'m a complete novice at this - and I\'d really appreciate it if someone could point out why exactly this SOAP Fault is being generated, and what I can do to rectify it.

I am using WAMP Server version 2.2, with mySQL 5.5.24 and PHP 5.3.13

回答1:

After migrating to PHP 5.6.5, the soap 1.2 did not work anymore. So I solved the problem by adding optional SSL parameters.

My error:

failed to load external entity

How to solve:

// options for ssl in php 5.6.5
$opts = array(
    'ssl' => array(
        'ciphers' => 'RC4-SHA',
        'verify_peer' => false,
        'verify_peer_name' => false
    )
);

// SOAP 1.2 client
$params = array(
    'encoding' => 'UTF-8',
    'verifypeer' => false,
    'verifyhost' => false,
    'soap_version' => SOAP_1_2,
    'trace' => 1,
    'exceptions' => 1,
    'connection_timeout' => 180,
    'stream_context' => stream_context_create($opts)
);

$wsdlUrl = $url . '?WSDL';
$oSoapClient = new SoapClient($wsdlUrl, $params);

回答2:

Put this code above any Soap call:

libxml_disable_entity_loader(false);

回答3:

On register_client.php make sure that the URL that has been passed to SoapClient is accessible from the machine you're executing the code.

$sClient = new SoapClient('http://127.0.0.1/MyRegistration/login.wsdl');

If 127.0.0.0 does not work you can try using some network IP address and see.

Let me know if it still does not fix it for you, I did try with your example and changing path (making it proper in my dev. environment) has fixed same error for me.

I would be interested to know if it does not fix it for you.

回答4:

try this. works for me

$options = array(
    'cache_wsdl' => 0,
    'trace' => 1,
    'stream_context' => stream_context_create(array(
          'ssl' => array(
               'verify_peer' => false,
                'verify_peer_name' => false,
                'allow_self_signed' => true
          )
    ))

$client = new SoapClient(url, $options);

回答5:

I had the same problem.

This php setting solved my problem:

allow_url_fopen -> 1

回答6:

Got a similar response with https WSDL URL using php soapClient

SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from ...

After server has been updated from PHP 5.5.9-1ubuntu4.21 >> PHP 5.5.9-1ubuntu4.23 something went wrong for my client machine osx 10.12.6 / PHP 5.6.30, but MS Web Services Clients connections could be made without issues.

Apache2's server_access.log showed no entry when i tried to load WSDL so i added 'cache_wsdl' => WSDL_CACHE_NONE to prevent client-side wsdl caching, but still got no entries. Finally i tried to load wsdl per CURL -i checked HEADERS but all seemed to be ok..

Only libxml_get_last_error() provided some insight > SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

So I added some ssl options to my call:

$contextOptions = array(
    'ssl' => array(
    'verify_peer' => false,
    'verify_peer_name' => false,
    'allow_self_signed' => true
    ));

$sslContext = stream_context_create($contextOptions);

$params =  array(
    'trace' => 1,
    'exceptions' => true,
    'cache_wsdl' => WSDL_CACHE_NONE,
    'stream_context' => $sslContext
    );

try {
    $proxy = new SoapClient( $wsdl_url, $params );
} catch (SoapFault $proxy) {
    var_dump(libxml_get_last_error());
    var_dump($proxy);
}

In my case 'allow_self_signed' => true did the trick!

回答7:

I am using selinux and with the following shell command (as root) I was able to allow PHP to make SOAP calls:

sudo setsebool -P httpd_can_network_connect on

回答8:

If anyone has the same problem, one possible solution is to set the bindto stream context configuration parameter (assuming you're connecting from 11.22.33.44 to 55.66.77.88):

$context = [
    'socket' => [
        'bindto' => '55.66.77.88'
    ]
];

$options = [
    'soapVersion' => SOAP_1_1,
    'stream_context' => stream_context_create($context)
];

$client = new Client('11.22.33.44', $options);

回答9:

Just had a similar problem trying to use SoapClient. Everything was working fine but in production, sometimes on page refresh, I would get the "SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from .." error.

I was using the params:

new \SoapClient($WSDL, array('cache_wsdl' => WSDL_CACHE_NONE, 'trace' => true, "exception" => 0));

Removing all the params worked for me:

new \SoapClient($WSDL);

回答10:

The problem may lie in you don't have enabled openssl extention in your php.ini file

go to your php.ini file end remove ; in line where extension=openssl is

Of course in question code there is a part of code responsible for checking whether extension is loaded or not but maybe some uncautious forget about it

来源：https://stackoverflow.com/questions/12875409/soap-php-fault-parsing-wsdl-failed-to-load-external-entity

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