Connecting to a SOAP service with 2 way SSL - php

Question

Basically, I am trying to connect to a SOAP service with 2 way SSL (HTTP client certificate authentication).
I am using PHP SoapClient for this within Laravel.
This is what I have, and it allows me to connect and returns the expected response. So the method is basically correct and the certificate is fine etc. It's just I am having trouble with what I guess is the 2 way SSL part.
$client = new \SoapClient('localwsdlfile.wsdl', array(
'local_cert' => 'localcert.pem',
'passphrase' => 'passphrase',
// 'location' => 'https://wsmurl/login/' // Uncomment to login
));
$response = $client->Get(array(
"AccessKey" => "accesskey",
"ProductID" => "SOMEPRODUCT",
"Scope" => "SOMESCOPE",
"Parameters" => array('Param' => array('_' => 'DATATOLOOKUP', 'id'=>'MOREDATATOLOOKUP'))
));
print_r($response);
The only problem is (obviously because I'm doing something wrong), is I need to add the line 'location' => 'https://wsmurl/login/' the first time I try to connect, otherwise I get an error "SoapFault Login Required"
I then remove the line 'location' => 'https://wsmurl/login/', otherwise, I get an error "SoapFault looks like we got no XML document".
The service provider has a 600 second timeout, where I don't have to "login" again for upto 600 seconds.
After removing this line 'location' => 'https://wsmurl/login/', then it works as expected. Obviously, I can't manually add and remove this line, and I guess I am not doing this correctly.
Can someone tell me a better way to do this please?
Thanks,

Answer 1

Because the location for the login and localwsdlfile.wsdl is different, I could not do it with one call. So we created a function using curl to login and if login is successful it will proceed to the soapclient. Thanks to Brian from freelancer for his assistance here.
$client = new SoapClient('wsdl/VocusSchemas/localwsdlfile.wsdl', array(
'trace' => 1,
'exception' => true
));
try {
$response = $client->Get(array(
// "AccessKey" => "MADAITABNSAATOT1",
"AccessKey" => "accesskey",
"ProductID" => "SOMEPRODUCT",
"Scope" => "SOMESCOPE",
"Parameters" => array('Param' => array('_' => 'DATATOLOOKUP', 'id' => 'MOREDATATOLOOKUP'))
));