nusoap met wsdl werkt niet

<?php
// Insert the NuSOAP code
require_once('nusoap.php');   
// Create an instance of the server
$server = new soap_server;
            
// Initialize WSDL support
$server->configureWSDL('helloworldwsdl', 'urn:helloworldwsdl');
// Put the WSDL schema types in the namespace with the tns prefix
$server->wsdl->schemaTargetNamespace = 'urn:helloworldwsdl';
// Register the data structures used by the service
$server->wsdl->addComplexType(
    'Person',
    'complexType',
    'struct',
    'all',
    '',
    array(
        'firstname' => array('name' => 'firstname', 
	                     'type' => 'xsd:string'),
        'age' => array('name' => 'age', 'type' => 'xsd:int'),
    )
);
$server->wsdl->addComplexType(
    'AgeConfirmReply',
    'complexType',
    'struct',
    'all',
    '',
    array(
        'output_string' => array('name' => 'output_string', 
	                         'type' => 'xsd:string'),
        'allow' => array('name' => 'allow', 'type' => 'xsd:boolean')
    )
);
// Register the method to expose
$server->register('hello',                    // method name
    array('person' => 'tns:Person'),          // input parameters
    array('return' => 'tns:AgeConfirmReply'), // output parameters
    'urn:helloworldwsdl',                          // namespace
    'urn:helloworldwsdl#hello',                    // soapaction
    'rpc',                                    // style
    'encoded',                                // use
    'Confirm the enquirer is over 18'         // documentation
);

// This is the method
function hello($input) {
    $output_string = 'Hello ' . $input['firstname'] . 
                '. You are ' . $input['age'] . ' years old.';
    
    if ( $input['age'] >= 18 ) { $allow = 1; }

    return array(
                'output_string' => $output_string,
                'allow' => $allow
                );
}

// This returns the result
$server->service($HTTP_RAW_POST_DATA);  
?>

<?php
// Insert the NuSOAP code
require_once('nusoap.php');   
// Create an instance of the server
$server = new soap_server;
 
// Initialize WSDL support
$server->configureWSDL('helloworldwsdl', 'urn:helloworldwsdl');
// Put the WSDL schema types in the namespace with the tns prefix
$server->wsdl->schemaTargetNamespace = 'urn:helloworldwsdl';
// Register the data structures used by the service
$server->wsdl->addComplexType(
    'Person',
    'complexType',
    'struct',
    'all',
    '',
    array(
        'firstname' => array('name' => 'firstname', 
	                     'type' => 'xsd:string'),
        'age' => array('name' => 'age', 'type' => 'xsd:int'),
    )
);
$server->wsdl->addComplexType(
    'AgeConfirmReply',
    'complexType',
    'struct',
    'all',
    '',
    array(
        'output_string' => array('name' => 'output_string', 
	                         'type' => 'xsd:string'),
        'allow' => array('name' => 'allow', 'type' => 'xsd:boolean')
    )
);
// Register the method to expose
$server->register('hello',                    // method name
    array('person' => 'tns:Person'),          // input parameters
    array('return' => 'tns:AgeConfirmReply'), // output parameters
    'urn:helloworldwsdl',                          // namespace
    'urn:helloworldwsdl#hello',                    // soapaction
    'rpc',                                    // style
    'encoded',                                // use
    'Confirm the enquirer is over 18'         // documentation
);
 
// This is the method
function hello($input) {
    $output_string = 'Hello ' . $input['firstname'] . 
                '. You are ' . $input['age'] . ' years old.';
 
    if ( $input['age'] >= 18 ) { $allow = 1; }
 
    return array(
                'output_string' => $output_string,
                'allow' => $allow
                );
}
 
// This returns the result
$server->service($HTTP_RAW_POST_DATA);  
?>

<?php 

// Insert the NuSOAP code
require_once('nusoap.php');   
// This is location of the remote service
$client = new soapclient('http://www.domein.com/api/helloworld-server-wsdl.php?wsdl', true);


// Check for any errors from the remote service
$err = $client->getError();
if ($err) {
    echo '<p><b>Error: ' . $err . '</b></p>';
}

$person = array('firstname' => 'Fred', 'age' => 22);
$result = $client->call('hello',array('message' => $person));

// Check for any faults reported by the remote service
if ($client->fault) {
    echo '<p><b>Fault: ';
    print_r($result);
    echo '</b></p>';
} else {
    // Check for any errors from the remote service
    $err = $client->getError();
    if ($err) {
    	echo '<p><b>Error: ' . $err . '</b></p>';
    } else {
        // If everything is OK display the result
	print $result['output_string'] . ' ';
	if ( $result['allow'] == 1 ) { 
		print "You may continue..."; 
	} else { 
		print "You are too young!"; 
	} 
    }
}

// Display the request and response
echo '<h2>Request</h2>';

	$text = htmlspecialchars($client->request, ENT_QUOTES);
	$remove = array ("<"," x"); 
	$insert = array ("<br><","<br>    x"); 
	$text = str_replace($remove, $insert, $text);

echo '<pre>' . $text . '</pre>';
echo '<h2>Response</h2>';

	$text = htmlspecialchars($client->response, ENT_QUOTES);
	$remove = array ("<"," x"); 
	$insert = array ("<br><","<br>    x"); 
	$text = str_replace($remove, $insert, $text);

echo '<pre>' . $text . '</pre>';

// Display the debug messages
echo '<h2>Debug</h2>';
echo '<pre>' . htmlspecialchars($client->debug_str, ENT_QUOTES) . '</pre>';
?>

<?php 
 
// Insert the NuSOAP code
require_once('nusoap.php');   
// This is location of the remote service
$client = new soapclient('http://www.domein.com/api/helloworld-server-wsdl.php?wsdl', true);
 
 
// Check for any errors from the remote service
$err = $client->getError();
if ($err) {
    echo '<p><b>Error: ' . $err . '</b></p>';
}
 
$person = array('firstname' => 'Fred', 'age' => 22);
$result = $client->call('hello',array('message' => $person));
 
// Check for any faults reported by the remote service
if ($client->fault) {
    echo '<p><b>Fault: ';
    print_r($result);
    echo '</b></p>';
} else {
    // Check for any errors from the remote service
    $err = $client->getError();
    if ($err) {
    	echo '<p><b>Error: ' . $err . '</b></p>';
    } else {
        // If everything is OK display the result
	print $result['output_string'] . ' ';
	if ( $result['allow'] == 1 ) { 
		print "You may continue..."; 
	} else { 
		print "You are too young!"; 
	} 
    }
}
 
// Display the request and response
echo '<h2>Request</h2>';
 
	$text = htmlspecialchars($client->request, ENT_QUOTES);
	$remove = array ("<"," x"); 
	$insert = array ("<br><","<br>    x"); 
	$text = str_replace($remove, $insert, $text);
 
echo '<pre>' . $text . '</pre>';
echo '<h2>Response</h2>';
 
	$text = htmlspecialchars($client->response, ENT_QUOTES);
	$remove = array ("<"," x"); 
	$insert = array ("<br><","<br>    x"); 
	$text = str_replace($remove, $insert, $text);
 
echo '<pre>' . $text . '</pre>';
 
// Display the debug messages
echo '<h2>Debug</h2>';
echo '<pre>' . htmlspecialchars($client->debug_str, ENT_QUOTES) . '</pre>';
?>