vtiger document create webservice

<?php
$userAccessKey = 'iw1lAnsV3bAwQ9ly';

var_dump($userAccessKey);

$user ='admin';
include_once('vtwsclib/Vtiger/WSClient.php');
$url = 'http://cleanvt61.netinteractive.pl/';
//$url = 'http://smartskills.netinteractive.pl/';
//$url = 'http://pomieszczenia.1crm.pl/';
//$url = 'http://pomieszczenia.niteamse.seo-linuxpl.com/';
//$url = 'http://reseller.niteamse.seo-linuxpl.com/';

$client = new Vtiger_WSClient($url);
$login = $client->doLogin($user, $userAccessKey);
if(!$login) echo 'Login Failed';
else {
    $fileB64 = base64_encode(file_get_contents('test.xml'));
    $moduleName = 'Documents';

// get file and file information
// if you are using PHP 5.2 (!) you need to install finfo via PECL
$finfo = finfo_open(FILEINFO_MIME); // return mime type ala mimetype extension.
$filename = 'test.xml';
$mtype = finfo_file($finfo, $filename);
$model_filename=array(
    'name'=>basename($filename),  // no slash nor paths in the name
    'size'=>filesize($filename),
    'type'=>$mtype,
    'content'=>base64_encode(file_get_contents($filename))
);

//fill in the details of the contacts.userId is obtained from loginResult.
$contactData  = array(
    //'assigned_user_id'=>$cbUserID,
    'notes_title' => 'REST Test create docxxRRRxxx',
    'filename'=>$model_filename,
    'filetype'=>$model_filename['type'],
    'filesize'=>$model_filename['size'],
    'filelocationtype'=>'I',
    'filedownloadcount'=> 0,
    'filestatus'=>1,
    'folderid' => '22x1',
);

$response = $client->doCreate($moduleName, $contactData);
//$dmsg.= debugmsg("Raw response (json) Create",$response);

echo "Document created with id: ".$response['id'];