nuSOAP problem

Hej eksperter

Har dette her script som kobler op imod en SOAP server.
Problemet er, at den server jeg bruger ikke har PHP 5 installeret og dermed ikke SOAP extensions.
Jeg har så istedet brugt nuSoap, men problemet er at jeg får denne fejl:
Fatal error: Call to undefined function: __dorequest() in /hsphere/local/home/mettecar/mettecarus.dk/soap.php on line 97

Dvs. at nuSoap åbenbart ikke understøtter "__dorequest()". Hvilken kommando skal jeg evt. bruge istedet?

Her er mit script:
<?php
// phpinfo();

// Include the SOAP classes
require_once($HTTP_SERVER_VARS['DOCUMENT_ROOT']."/nuSoap/lib/nusoap.php");

function XMLtoArray($XML) {
print 'test1';
  $xml_parser = xml_parser_create();
  xml_parse_into_struct($xml_parser, $XML, $vals);
  xml_parser_free($xml_parser);
  $_tmp='';
  foreach ($vals as $xml_elem){
  print 'test2';
      $x_tag=$xml_elem['tag'];
      $x_level=$xml_elem['level'];
      $x_type=$xml_elem['type'];
      if ($x_level!=1 && $x_type == 'close') {
          if (isset($multi_key[$x_tag][$x_level]))
              $multi_key[$x_tag][$x_level]=1;
          else
              $multi_key[$x_tag][$x_level]=0;
      }
      if ($x_level!=1 && $x_type == 'complete') {
          if ($_tmp==$x_tag)
              $multi_key[$x_tag][$x_level]=1;
          $_tmp=$x_tag;
      }
  }
  foreach ($vals as $xml_elem){
      $x_tag=$xml_elem['tag'];
      $x_level=$xml_elem['level'];
      $x_type=$xml_elem['type'];
      if ($x_type == 'open')
          $level[$x_level] = $x_tag;
      $start_level = 1;
      $php_stmt = '$xml_array';
      if ($x_type=='close' && $x_level!=1)
          $multi_key[$x_tag][$x_level]++;
      while($start_level < $x_level){
            $php_stmt .= '[$level['.$start_level.']]';
            if (isset($multi_key[$level[$start_level]][$start_level]) && $multi_key[$level[$start_level]][$start_level])
                $php_stmt .= '['.($multi_key[$level[$start_level]][$start_level]-1).']';
            $start_level++;
      }
      $add='';
      if (isset($multi_key[$x_tag][$x_level]) && $multi_key[$x_tag][$x_level] && ($x_type=='open' || $x_type=='complete')){
          if (!isset($multi_key2[$x_tag][$x_level]))
              $multi_key2[$x_tag][$x_level]=0;
          else
              $multi_key2[$x_tag][$x_level]++;
            $add='['.$multi_key2[$x_tag][$x_level].']';
      }
      if (isset($xml_elem['value']) && trim($xml_elem['value'])!='' && !array_key_exists('attributes',$xml_elem)){
          if ($x_type == 'open')
              $php_stmt_main=$php_stmt.'[$x_type]'.$add.'[\'content\'] = $xml_elem[\'value\'];';
          else
              $php_stmt_main=$php_stmt.'[$x_tag]'.$add.' = $xml_elem[\'value\'];';
          eval($php_stmt_main);
      }
      if (array_key_exists('attributes',$xml_elem)){
          if (isset($xml_elem['value'])){
              $php_stmt_main=$php_stmt.'[$x_tag]'.$add.'[\'content\'] = $xml_elem[\'value\'];';
              eval($php_stmt_main);
          }
          foreach ($xml_elem['attributes'] as $key=>$value){
              $php_stmt_att=$php_stmt.'[$x_tag]'.$add.'[$key] = $value;';
              eval($php_stmt_att);
          }
      }
  }
    return $xml_array;
}


function payment($cardnumber, $expiremonth, $expireyear, $cvc, $orderid, $amount){
  $wsdl ='https://ssl.ditonlinebetalingssystem.dk/remote/subscription.asmx?WSDL';
  $client = new SoapClient($wsdl);             
  $xml .='<?xml version="1.0" encoding="utf-8"?>';
  $xml .=' <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">';
  $xml .='  <soap:Body>';
  $xml .='    <authorizePayment xmlns="https://ssl.ditonlinebetalingssystem.dk/remote/">';
  $xml .='      <cardnumber>'.$cardnumber.'</cardnumber>';
  $xml .='      <expiremonth>'.$expiremonth.'</expiremonth>';
  $xml .='      <expireyear>'.$expireyear.'</expireyear>';
  $xml .='      <cvc>'.$cvc.'</cvc>';
  $xml .='      <orderid>'.$orderid.'</orderid>';
  $xml .='      <amount>'.$amount.'</amount>';
  $xml .='      <currency>208</currency>';
  $xml .='      <instantcapture>1</instantcapture>';
  $xml .='      <test>0</test>';
  $xml .='      <merchantnumber>88888888</merchantnumber>';
  $xml .='    </authorizePayment>';
  $xml .='  </soap:Body>';
  $xml .=' </soap:Envelope>';
    $action = "https://ssl.ditonlinebetalingssystem.dk/remote/authorizePayment";
  $resultset = $client->__doRequest($xml, $wsdl, $action, null);
    $results = XMLtoArray($resultset);
    unset($client);
    print $results;
  return $results['SOAP:ENVELOPE']['SOAP:BODY']['AUTHORIZEPAYMENTRESPONSE'];
}

print 'tester<bR>';
ECHO payment('5555555555555000', '12', '2012', '113', '12', '100')
?>