步骤 3：使用 PHP 连接到 SQL 的概念证明

下载 PHP 驱动程序

步骤 1：连接

此 OpenConnection 函数在后跟的所有函数的顶部附近位置调用。

    function OpenConnection()
    {
        $serverName = "tcp:myserver.database.windows.net,1433";
        $connectionOptions = array("Database"=>"AdventureWorks",
            "Uid"=>"MyUser", "PWD"=>"MyPassword");
        $conn = sqlsrv_connect($serverName, $connectionOptions);
        if($conn == false)
            die(FormatErrors(sqlsrv_errors()));

        return $conn;
    }

步骤 2：执行查询

sqlsrv_query() 函数可用于针对 SQL 数据库从查询中检索结果集。 此函数实质上接受任意查询和连接对象，并返回可使用 sqlsrv_fetch_array() 循环访问的结果集。

    function ReadData()
    {
        try
        {
            $conn = OpenConnection();
            $tsql = "SELECT [CompanyName] FROM SalesLT.Customer";
            $getProducts = sqlsrv_query($conn, $tsql);
            if ($getProducts == FALSE)
                die(FormatErrors(sqlsrv_errors()));
            $productCount = 0;
            while($row = sqlsrv_fetch_array($getProducts, SQLSRV_FETCH_ASSOC))
            {
                echo($row['CompanyName']);
                echo("<br/>");
                $productCount++;
            }
            sqlsrv_free_stmt($getProducts);
            sqlsrv_close($conn);
        }
        catch(Exception $e)
        {
            echo("Error!");
        }
    }

步骤 3：插入行

此示例展示了如何安全地执行 INSERT 语句和传递参数。 参数值保护应用程序不受 SQL 注入影响。

    function InsertData()
    {
        try
        {
            $conn = OpenConnection();

            $tsql = "INSERT SalesLT.Product (Name, ProductNumber, StandardCost, ListPrice, SellStartDate) OUTPUT"
                    . " INSERTED.ProductID VALUES ('SQL Server 1', 'SQL Server 2', 0, 0, getdate())";
            //Insert query
            $insertReview = sqlsrv_query($conn, $tsql);
            if($insertReview == FALSE)
                die(FormatErrors( sqlsrv_errors()));
            echo "Product Key inserted is :";
            while($row = sqlsrv_fetch_array($insertReview, SQLSRV_FETCH_ASSOC))
            {
                echo($row['ProductID']);
            }
            sqlsrv_free_stmt($insertReview);
            sqlsrv_close($conn);
        }
        catch(Exception $e)
        {
            echo("Error!");
        }
    }

步骤 4：回滚事务

此代码示例演示了可以在其中执行以下操作的事务的用法：

• 开始一个事务

• 插入一行数据，更新另一行数据

• -如果插入和更新操作都成功，则提交事务；如果其中任一操作失败，则回滚事务

    function Transactions()
    {
        try
        {
            $conn = OpenConnection();

            if (sqlsrv_begin_transaction($conn) == FALSE)
                die(FormatErrors(sqlsrv_errors()));

            $tsql1 = "INSERT INTO SalesLT.SalesOrderDetail (SalesOrderID,OrderQty,ProductID,UnitPrice)
            VALUES (71774, 22, 709, 33)";
            $stmt1 = sqlsrv_query($conn, $tsql1);

            /* Set up and execute the second query. */
            $tsql2 = "UPDATE SalesLT.SalesOrderDetail SET OrderQty = (OrderQty + 1) WHERE ProductID = 709";
            $stmt2 = sqlsrv_query( $conn, $tsql2);

            /* If both queries were successful, commit the transaction. */
            /* Otherwise, rollback the transaction. */
            if($stmt1 && $stmt2)
            {
                   sqlsrv_commit($conn);
                   echo("Transaction was committed");
            }
            else
            {
                sqlsrv_rollback($conn);
                echo "Transaction was rolled back.\n";
            }
            /* Free statement and connection resources. */
            sqlsrv_free_stmt( $stmt1);
            sqlsrv_free_stmt( $stmt2);
        }
        catch(Exception $e)
        {
            echo("Error!");
        }
    }

更多示例

示例应用程序（SQLSRV 驱动程序）
示例应用程序（PDO_SQLSRV 驱动程序）