创建连接

$dbServer = "localhost,1234"; //Name of the server/instance, including optional port number (default is 1433)
$dbName = "db001"; //Name of the database
$dbUser = "user"; //Name of the user
$dbPassword = "password"; //DB Password of that user

$connectionInfo = array(
    "Database" => $dbName, 
    "UID" => $dbUser,
    "PWD" => $dbPassword
);

$conn = sqlsrv_connect($dbServer, $connectionInfo);

SQLSRV 还有一个 PDO 驱动程序。要使用 PDO 进行连接：

$conn = new PDO("sqlsrv:Server=localhost,1234;Database=db001", $dbUser, $dbPassword);