致命錯誤：找不到驅動程序

我嘗試使用PHP PDO連接到SQL Server，但它一直給我錯誤。而且，我已經在下面的目錄xampp-> PHP致命錯誤：找不到驅動程序

Fatal error: Uncaught exception 'PDOException' with message 'could not find driver' in C:\xampp\htdocs\config.php:35 Stack trace: #0 C:\xampp\htdocs\config.php(35): PDO->__construct('sqlsrv:server=C...', 'username...', 'pass') #1 {main} thrown in C:\xampp\htdocs\config.php on line 35

這裏是我的PHP代碼文件php_pdo_sqlsrv_53nts.dll：

<?php 
     $serverName ="serverName"; 
      $dbName="databaseName"; 
      $username="userName"; 
      $password="passWrord"; 

      $connection = new PDO("sqlsrv:server=$serverName ; Database=$dbName", "$username", "$password"); 

     if($connection) 
{ 
    echo "Connection established.\n"; 
    } 
else 
    { 
    echo "Connection could not be established.\n"; 
    die(print_r(sqlsrv_errors(), true)); 
    } 



?>

有什麼問題我在做什麼？讚賞。

來源

2013-07-23 user2501165