insert unicode data to MSSQL via web form

Hi Guyz,

Anyone one know is it possible to insert unicode code data into MSSQL 2000 via web forms using PHP?

I got a problem with that.
The inserted data becomes some special characters or ???.

Here is my system info:

Platform: Windows 2000 (Traditional Chinese)
WebServer: Apache 3.x
Database: MSSQL 2000 (Default collation: Chinese_Taiwan_Stroke_CI_AS)
PHP: v4.0.5

DB Connection method: through ODBC

My Codes:

- a simple HTML form using CHARSET UTF-8:
-----------------------------------------------
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<form name="myform" method="post" action="insert.php">
<input name="text" type="text">
<input name="submit" type="submit">
</form>
-----------------------------------------------

- INSERT.PHP for inserting data into MSSQL via ODBC
------------------------------------------------
if (! $conn = odbc_connect("TEST","sa","sapass"))
echo "CONN FAIL";

$stmt = "INSERT INTO NEWTB (MYID, MYFILE) VALUES ('1', '" . $text . "')";
if (odbc_exec( $conn, $stmt))
echo "ok";
else
echo "fail!";
------------------------------------------------

- READ.PHP, script for selecting data from MSSQL
------------------------------------------------
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<table>
<?
if (! $conn = odbc_connect("TORTEST","sa",""))
echo "CONN FAIL";

$stmt = "SELECT MYID, MYFILE FROM NEWTB";
$cur = odbc_exec( $conn, $stmt);

while(odbc_fetch_row( $cur ))
{
$myID = odbc_result( $cur, 1 );
$myFile = odbc_result( $cur, 2 );
$myText = odbc_result( $cur, 3 );
echo "<tr><td>$myID </td><td>$myFile</td><td>$myText</td></tr>n";

}
?>
</table>
------------------------------------------------
- Here is the schema of DB Table NEWTB

MYID INT
MYFILE NVARCHAR(100) ( Collation: Chinese_Taiwan_Stroke_BIN )
MYTEXT NTEXT(16) ( Collation: Chinese_Taiwan_Stroke_BIN )



------------------------------------------------

Anyone got a working solution or any idea on this?