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I using ODBC to connect sql server 2008 like

$virtual_dsn = 'DRIVER={SQL Server};SERVER=MyServerName;DATABASE=myDatabase';
$conn = odbc_connect($virtual_dsn,'sa','mypass') or die('ODBC Error:: '.odbc_error().' :: '.odbc_errormsg().' :: '.$virtual_dsn);
if (!$conn){
    if (phpversion() < '4.0'){
      exit("Connection Failed: . $php_errormsg" );
    else{
      exit("Connection Failed:" . odbc_errormsg() );
// This query generates a result set with one record in it.
$sql="SELECT TOP 10 * FROM Mytable";
# Execute the statement.
$rs=odbc_exec($conn,$sql);
// Fetch and display the result set value.
if (!$rs){
    exit("Error in SQL");
while (odbc_fetch_row($rs)){
    $col1=odbc_result($rs, "name");
    echo "$col1 <br>";
// Disconnect the database from the database handle.
odbc_close($conn);
But i get text not correct like
b?�o c?�o việc sử dụng
i try to using odbc_exec($conn, "SET names utf8");
but get error
 Warning: odbc_exec(): SQL error: [Microsoft][SQL Server Native Client 10.0][SQL Server]'names' is not a recognized SET option., SQL state 37000 in SQLExecDirect in C:\xampp\htdocs\sql\index.php on line 32
How set utf-8 using odbc_connect thanks
                Is this output to a web browser? Did you set the correct charset in the output Content-type? stackoverflow.com/questions/905173/…
– Michael Berkowski
                Sep 11, 2013 at 1:52
                @MichaelBerkowski I have header("Content-Type: text/html; charset=utf-8"); on top but not working and using iconv("Windows-1256", "UTF-8", "$col1") that still not working? My column has Collation: SQL_Latin1_General_CP1_CI_AS, nvarchar(3000) ?
– DeLe
                Sep 11, 2013 at 2:01
                This may have already answered your question: [How to set charset for SQL Connection][1]        [1]: stackoverflow.com/questions/1322421/…
– Farhan Javed
                Mar 24, 2014 at 1:10
odbc_exec doesn't accept 'SET NAMES utf8' as second parameter. the second parameter must be the query.
to set utf8 for variables only use utf8_decode or iconv
$col1=utf8_decode(odbc_result($rs, "name"));
$col1=odbc_result($rs, "name");
iconv("UTF-8", "CP1252", $col1);
  
Warning: odbc_exec(): SQL error: [Microsoft][SQL Server Native Client 10.0][SQL Server]'names' is not a recognized SET option., SQL state 37000 in SQLExecDirect in C:\xampp\htdocs\sql\index.php on line 32
this is not an error, is a WARNING. but check odbc_exec manual to ensure all.
        
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