！php调用webservice出错

求助！！！php调用webservice出错！

<br />
$client = new soapclient('http://www.tuc365.cn/SPINTERFACE.asmx?wsdl', true);<br />
<br />
$fromcity=$_POST[txtCity];                //出发城市<br />
$tocity=$_POST[txtCity0];                 //抵达城市<br />
$fromdate=$_POST[fromdate];               //出发时间<br />
$roles=$_POST[roles];                     //是否返回<br />
$returnDate=$_POST[returnDate];           //返回时间<br />
$userName=$_POST[username];               //用户名<br />
$clientName=$_POST[clientName];           //乘客姓名<br />
$clientCardId=$_POST[clientCardid];       //乘客证件号<br />
$clientPhone=$_POST[clientPhone];         //乘客电话<br />
$clientType=$_POST[clientType];           //乘客类型<br />
$webname="51pingo.com";                   //网站名称<br />
$filghtId=$_POST[$filghtId];              //航班id <br />
$linkName=$_POST[txtLinkManName];         //联系人姓名           <br />
$linkPhone=$_POST[txtLinkManPhone];       //联系人电话<br />
$linkAddress=$_POST[txtLinkManAddress];   //联系人电话<br />
$linkEmail=$_POST[txtLinkManEmail];       //联系人email<br />
$webOrderId=date("YmdHis");               //生成订单号<br />
$webUserName="tuc365";<br />
$webmd5="tuc365";<br />
<br />
$orderInfo=array($fromcity,$tocity,$fromdate,$roles,$returnDate,$userName,$clientName,$clientCardId,$clientPhone,$clientType,$webname,$filghtId,$linkName,$linkPhone,$linkAddress,$linkEmail,$webOrderId,$webUserName,$webmd5);<br />
$str=$client->call('AddOrders',$orderInfo);<br />
if (!$err=$client->getError()) {<br />
    echo "程序返回:",htmlentities($str,ENT_QUOTES);<br />
} else {<br />
    echo "错误 :",htmlentities($err,ENT_QUOTES);<br />
}<br />

现在的返回信息是
错误 :wsdl error: phpType is struct, but value is not an array: see debug output for details 
请问高手如何解决！php调用webservice这两天刚研究。不是很懂！
------解决方案--------------------
<br> <?php <br /> header("Content-Type: text/html;charset=utf-8");<br> $client = new SoapClient('http://www.tuc365.cn/SPINTERFACE.asmx?wsdl');<br> <br> //GetFlight<br> $aData = array('webName'=>'','webUserName'=>'','webmd5'=>'tuc365');<br> $aResult = $client->__call('GetFlight',$aData);<br> <br> //AddOrders <br> /*$aData = array(<br> "fromCity"=>"", <br> "toCity"=>"", <br> "fromDate"=>"", <br> "returnDate"=>"", <br> "roles"=>"", <br> "userName"=>"", <br> "clientName"=>"", <br> "clientCardId"=>"", <br> "clientPhone"=>"", <br> "clientType"=>"", <br> "webName"=>"", <br> "flightId"=>"", <br> "linkName"=>"", <br> "linkPhone"=>"", <br> "linkAddress"=>"",  <div class="clear"> </div>