PHP - SOAP "Parsing WSDL: Couldn't load from ..." Error - php

Question

This is my code:
$this->options = [
"login" => $username,
"password" => $password
];
try {
$this->request = new SoapClient('https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl', $this->options);
} catch(Exception $e) {
throw new Exception($e->getMessage());
}
And this is the error message:
Fatal error: Uncaught Exception: SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl' : failed to load external entity "https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl"
Any idea how I can fix this error?
[UPDATE]
I can get functions with this code:
$wsdl = file_get_contents('https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl');
But this code still gets error:
SoapClient('https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl', $this->options);

Answer 1

try from command line:
wget https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl
or
php -r '$a = new SoapClient("https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl"); var_dump($a);'
Maybe resource id not available from tour host

Answer 2

To handle SOAP exceptions, you can give this answer a try. Following code is standalone code which is returning a SOAP response.
$params = array(
"login" => "USERNAME",
"password" => "PASSWORD"
);
try {
$client = new SoapClient('https://servis.turkiye.gov.tr/services/g2g/kdgm/test/uetdsesya?wsdl', array($params));
} catch(Exception $e) {
throw new Exception($e->getMessage());
}
To List all available SOAP functions:
echo " List of available SOAP functions <br/><pre>"; var_dump($client->__getFunctions()); echo "</pre>";
To List all available SOAP types:
echo "List of SOAP types <br/><pre>"; var_dump($client->__getTypes()); echo "</pre>";
This answer has an explanation about how to access any available SOAP function.