我正在尝试使用 PDO 连接到 SQL Server 数据库。我一直在努力解决它现在我在我试图连接到 SQL Server 的页面上收到这个致命错误
致命错误：带有消息“SQLSTATE [IMSSP]”的未捕获异常“PDOException”：此扩展需要 Microsoft SQL Server 2012 Native Client ODBC 驱动程序才能与 SQL Server 通信。访问以下 URL 以下载适用于 x86 的 Microsoft SQL Server 2012 Native Client ODBC 驱动程序：http: //go.microsoft.com/fwlink/ ?LinkId=163712 '
我已经从 http://www.microsoft.com/en-us/download/details.aspx?id=20098 (SQLSRV30.EXE) 下载了这些驱动程序我已经将这些驱动程序放在服务器上安装 php 的 ext 目录中2008 R2 服务器。
我还在 php.ini 文件的扩展列表末尾添加了这两行
extension=php_pdo_sqlsrv_53_nts.dll
extension=php_sqlsrv_53_nts.dll
我正在使用 PH PVersion 5.3.19 服务器 API CGI/FastCGI 线程安全已禁用
我确实看到pdo_sqlsrv了，但我没有看到客户端 API 版本。
我还需要做什么才能使用 PDO 连接到具有 SQL 数据库的远程服务器？我需要在远程服务器上安装任何东西吗？
这是我的 php 我的管理部分的屏幕截图
这是我的连接类
<?php
class connection {
private $connString;
private $userName;
private $passCode;
private $server;
private $pdo;
private $errorMessage;
protected $lastQueryTime;
protected $lastQuery;
private $pdo_opt = array (
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"
);
function __construct($dbName = DATABASE_NAME, $serverName = DATABASE_HOST){
//sets credentials
$this->setConnectionCredentials($dbName, $serverName);
//start the connect
$this->startConnection();
}
function startConnection(){
$this->pdo = new PDO($this->connString, $this->userName, $this->passCode, $this->pdo_opt);
if( ! $this->pdo){
$this->errorMessage = 'Failed to connect to database. Please try to refresh this page in 1 minute. ';
$this->errorMessage .= 'However, if you continue to see this message please contact your system administrator.';
echo $this->getError();
}
}
//this will close the PDO connection
public function endConnection(){
$this->pdo = null;
}
//return a dataset with the results
public function getDataSet($query, $data = NULL)
{
$start = microtime(true);
$cmd = $this->pdo->prepare( $query );
$cmd->execute($data);
$ret = $cmd->fetchAll();
//$cmd->closeCursor();
$this->lastQueryTime = microtime(true) - $start;
$this->lastQuery = $query;
return $ret;
}
public function processQuery($query, $data = NULL)
{
$start = microtime(true);
//$this->pdo->beginTransaction();
$cmd = $this->pdo->prepare( $query );
$ret = $cmd->execute($data);
//$this->pdo->commit();
//$cmd->closeCursor();
$this->lastQueryTime = microtime(true) - $start;
$this->lastQuery = $query;
return $ret;
}
//return last insert id
public function lastInsertId($name = NULL) {
if(!$this->pdo) {
return false;
}
return $this->pdo->lastInsertId($name);
}
public function getOneResult($query, $data = NULL){
$cmd = $this->pdo->prepare( $query );
$cmd->execute($data);
return $cmd->fetchColumn();
}
public function getError(){
if($this->errorMessage != '')
return $this->errorMessage;
else
return true; //no errors found
}
//this where you need to set new server credentials with a new case statment
function setConnectionCredentials($dbName, $serv){
switch($serv){
//MS SQL server
case 'SQLSERVER':
$this->connString = 'sqlsrv:server='.$serv.';database='.$dbName;
$this->userName = 'username';
$this->passCode = 'password';
break;
//the defaults are predefined in the APP_configuration file - DO NOT CHANGE THE DEFAULT
default:
$this->connString = 'mysql:host='.DATABASE_HOST.';dbname='.DATABASE_NAME.';charset=utf8';
$this->userName = DATABASE_USERNAME;
$this->passCode = DATABASE_PASSWORD;
break;
}
}
public function lastQueryTime() {
if(!$this->lastQueryTime) {
throw new Exception('no query has been executed yet');
}
return $this->lastQueryTime;
}
public function lastQuery() {
if(!$this->lastQuery) {
throw new Exception('no query has been executed yet');
}
return $this->lastQuery;
}
}
?>
这就是我使用我的类来提取数据集的方式
<?php
include('connection.php');
$sql_db = new connection('databaseName','SQLSERVER');
$call_details = $sql_db->getDataSet('SELECT
LocalUserId AS loginName,
RemoteNumberCallId AS PhoneNumber,
SUM(CallDurationSeconds + HoldDurationSeconds + LineDurationSeconds) AS totalTalk
FROM dbo.CallDetail WHERE LocalUserId = \'blah\' AND RemoteNumberCallId = \'123456789\'
GROUP BY LocalUserId, RemoteNumberCallId');
$call_details->endConnection();
?>
我什至尝试过这段代码，所以我不会使用我的课程，我仍然会遇到同样的错误
$ss = new PDO("sqlsrv:server=SQLSERVER; Database=databaseName", "userName", "Password");