Get data return from call function from soap is difference language - soap

Question

I have my project about soap.
I can call function from wsdl successfully but the string return is "????" which "???" is thai language.
server.php
<?php
require_once("lib/nusoap.php");
$server = new soap_server();
//$server->soap_defencoding = 'utf-8';
$server->decode_utf8 = false;
//$server->configureWSDL("Testing WSDL ","urn:Testing WSDL ");
$server->configureWSDL("GetInformation","urn:GetInformation");
//Create a complex type
//----------------------------------
//Add ComplexType with Array
$server->wsdl->addComplexType("ArrayOfString",
"complexType",
"array",
"",
"SOAP-ENC:Array",
array(),
array(array("ref"=>"SOAP- ENC:arrayType","wsdl:arrayType"=>"xsd:string[]")),
"xsd:string");
//----------------------------------
$server->register('getInfo',array('CASE_ID' => 'xsd:string'),array('return' => 'tns:ArrayOfString'),'urn:Info','urn:Info#getInfo');
function getInfo($case_id) {
include("ConnectSQL.php");
$dbhandle = mssql_connect($myServer, $myUser, $myPass)
or die("Couldn't connect to SQL Server on $myServer");
//select a database to work with
$selected = mssql_select_db($myDB, $dbhandle)
or die("Couldn't open database $myDB");
$strCase_ID = $case_id;
// Query
$qry = "SELECT * ";
$qry .= "FROM tbCustomer WHERE CASE_ID = '$strCase_ID' ";
//$arr[0]= $qry;
//execute the SQL query and return records
$result = mssql_query($qry);
//$arr[0] = $strCase_ID;
$i = 0;
$recordcount = mssql_num_rows($result);
if ($recordcount != 0)
{
//display the results
while($row = mssql_fetch_array($result))
{
$myname = $row["PREFIX"] ." ". $row["NAME"] ." ". $row["MIDDLE"]." " ;
$arr[$i] = $myname;
$i = $i+1;
}
//close the connection
mssql_close($dbhandle);
//return $myname; //iconv("ISO-8859-1", "UTF-8", $myname );
return $arr;
}
else
{
return $arr;
//echo "<font color=red>**</font> Username & Password is wrong";
}
}
$HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA : '';
$server->service($HTTP_RAW_POST_DATA);
exit();
?>
client side:
Dim clnt As New SoapClient30
Dim strText
Dim strID As String
clnt.MSSoapInit "http://localhost/MyProject4/server.php?wsdl"
strID = "001"
strText = clnt.getInfo(strID)
MsgBox strText(0)
I don't know way for encode from vb6 client.
thank you