SOAP-ERROR: Parsing Schema: can't import schema from domain.com/WebService.svc?xsd=xsd0

Question

Problem

I am working on a web service and I am unable to connect always get this error message:

SOAP-ERROR: Parsing Schema: can't import schema from domain.com/WebService.svc?xsd=xsd0

I did went to all of the SO questions I did not find a solution.

Server

Linux, php7.1

PHP Modules Enabled

bz2, calendar, Core, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd,
gettext, hash, iconv, intl, json, ldap, libxml, mbstring, mysqli, mysqlnd,
openssl, pcntl, pcre, PDO, pdo_dblib, pdo_mysql, pdo_sqlite, Phar, posix,
readline, Reflection, session, shmop, SimpleXML, soap, sockets, SPL,
sqlite3, standard, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xml, 
xmlreader, xmlwriter, xsl, zip, zlib

Code

$wsdlFile = **fullpathtowsdlfile**;
$context = stream_context_create([
            'ssl' => [
                // set some SSL/TLS specific options
                'verify_peer' => false,
                'verify_peer_name' => false,
                'allow_self_signed' => true
            ],
             
            'http'=>array(
                'user_agent'=>'SoapClient'
            )
             
        ]);

$options = array(
            'trace'=>1,
            'location'=>self::$wsdl,
            'exception'=>1,
            'cache_wsdl'=>WSDL_CACHE_NONE,
            //'stream_context'=>$context, // disable but leaved for reference.
            'local_cert'=> **fullpath**,
            'soap_version'=> SOAP_1_1
        );

$client =  new \SoapClient($wsdlFile, $options);

Also tried the Url instead of the Wsdl file and I get the same error. I can connect to the url via telnet domain 80 , telnet domain 413 and with my browser.

What I am missing? Any help will be appreciated.

Answer 1

The issue was a self signed certificate, updated my code to this and now the error is gone.

$context = stream_context_create([
            'ssl' => [
                // set some SSL/TLS specific options
                'verify_peer' => false,
                'verify_peer_name' => false,
                'allow_self_signed' => true
            ] 
        ]);

$options = array(
            'trace'=>1,
            'exception'=>0,
            'stream_context'=>$context,  

        );
$client =  new \SoapClient($wsdlFile, $options);