[https://www.dll-files.com/search/?q=php\_pdo\_sqlsrv.dll](https://www.dll-files.com/search/?q=php_pdo_sqlsrv.dll) ``` $conn = newPDO("sqlsrv:Server=foo-sql,1433;Database=mydb",$user,$pass); if($conn) { echo "连接成功"; } ``` [https://www.php.net/manual/zh/ref.pdo-sqlsrv.connection.php](https://www.php.net/manual/zh/ref.pdo-sqlsrv.connection.php)