步驟 3:使用 PHP 連線到 SQL 的概念證明
步驟 1:連線
這個 OpenConnection 函式會在所有後續函式的頂端附近呼叫。
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;
}
步驟 2:執行查詢
sqlsrv_query() 函式可用來擷取對 SQL Database 執行之查詢的結果集。 這個函式基本上會接受任何查詢和連線物件並傳回結果集,其可以使用 sqlsrv_fetch_array() \(英文\) 來反覆查詢。
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!");
}
}
步驟 3:插入資料列
在此範例中,您將了解如何安全地執行 INSERT 陳述式,並傳遞參數。 參數值可協助您的應用程式防禦 SQL 插入。
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!");
}
}
步驟 4:復原交易
這個程式碼範例示範如何使用交易,您將:
開始交易
插入一列資料,更新另一列資料
確認您的交易中插入與更新是否成功,如果其中一個未成功,就復原交易
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!");
}
}