<?php
            include "connectSQL.php";           
            $sql = "SELECT TOP 1 [update_time] FROM [C3].[dbo].[DataTime] ORDER BY [update_time] desc";
           $fetchResult = sqlsrv_query($conn, $sql);
           
            while($row = sqlsrv_fetch_array($fetchResult)){
	           $date = $row["update_time"]->format('Y-m-d H:i:s');

               echo $date;
            }
    
            sqlsrv_close($conn);
?>