<?php
class WsseAuthHeader extends SoapHeader
{
    private $wss_ns = 'http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd';
    function __construct($user, $pass, $ns = null)
    {
        if ($ns)
        {
            $this->wss_ns = $ns;
        }

        $auth = new stdClass();

        $auth->Username = new SoapVar($user, XSD_STRING, NULL, $this->wss_ns, NULL, $this->wss_ns);
        $auth->Password = new SoapVar($pass, XSD_STRING, NULL, $this->wss_ns, NULL, $this->wss_ns);
        $username_token = new stdClass();
        $username_token->UsernameToken = new SoapVar($auth, SOAP_ENC_OBJECT, NULL, $this->wss_ns, 'UsernameToken', $this->wss_ns);
        $security_sv = new SoapVar(
                                new SoapVar($username_token, SOAP_ENC_OBJECT, NULL, $this->wss_ns, 'UsernameToken', $this->wss_ns),
                                SOAP_ENC_OBJECT, NULL, $this->wss_ns, 'Security', $this->wss_ns);

        parent::__construct($this->wss_ns, 'Security', $security_sv, true);
    }
}

try
{

    $options = array(
        'soap_version'    => SOAP_1_2,
        'exceptions'      => true,
        'trace'           => true,
        'wdsl_local_copy' => true,
        );


$username = "User";
$password = "Password";

$wsse_header = new WsseAuthHeader($username, $password);
$endPointURI = "https://localhost:88776/SoapTEST/services/securityservice.svc?wsdl";
$client = new SoapClient($endPointURI, $options);
$client->__setSoapHeaders(array($wsse_header));


print_r($client->__getFunctions());

$retval = $client->GetDocuments();

print_r($retval);
}
catch(Exception $e)
{
    echo "<h2>Exception Error!</h2></b>";
    echo $e->getMessage();
}
?>