php mssql数据库连接代码

$conn=ADONewConnection('odbc_mssql'); 
$conn->PConnect("Driver={SQL Server};Server=DLUT-PCSQLEXPRESS;Database=yuyan;",'zhouhao','950288'); 
$ADODB_FETCH_MODE=ADODB_FETCH_ASSOC; 
$sqlstr='select * from yuyan where ps教程nNo=?'; 
$rst=$conn->execute($sqlstr,'005') or die('connect error'); 
while(!$rst->EOF) 
{ 
//echo $rst->fields['psnName'].'->'.$rst->fields['www.phprm.com'].''; 
echo 'dajiahao'; 
$rst->movenext(); 
} 
$rst->close(); 
$conn->close();