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sqlsrv_rollback — Rolls back a transaction that was begun with sqlsrv_begin_transaction()
$conn
)Rolls back a transaction that was begun with sqlsrv_begin_transaction() and returns the connection to auto-commit mode.
conn
The connection resource returned by a call to sqlsrv_connect() .
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 sqlsrv_rollback() example
The following example demonstrates how to use sqlsrv_begin_transaction() together with sqlsrv_commit() and sqlsrv_rollback() .
<?php
$serverName = "serverName\sqlexpress" ;
$connectionInfo = array( "Database" => "dbName" , "UID" => "userName" , "PWD" => "password" );
$conn = sqlsrv_connect ( $serverName , $connectionInfo );
if( $conn === false ) {
die( print_r ( sqlsrv_errors (), true ));
}
if ( sqlsrv_begin_transaction ( $conn ) === false ) {
die( print_r ( sqlsrv_errors (), true ));
}
$orderId = 1 ; $qty = 10 ; $productId = 100 ;
$sql1 = "INSERT INTO OrdersTable (ID, Quantity, ProductID)
VALUES (?, ?, ?)" ;
$params1 = array( $orderId , $qty , $productId );
$stmt1 = sqlsrv_query ( $conn , $sql1 , $params1 );
$sql2 = "UPDATE InventoryTable
SET Quantity = (Quantity - ?)
WHERE ProductID = ?" ;
$params2 = array( $qty , $productId );
$stmt2 = sqlsrv_query ( $conn , $sql2 , $params2 );
if( $stmt1 && $stmt2 ) {
sqlsrv_commit ( $conn );
echo "Transaction committed.<br />" ;
} else {
sqlsrv_rollback ( $conn );
echo "Transaction rolled back.<br />" ;
}
?>