在看這篇博客的時候，如果你有什麽疑惑嗎，可以參照一下這兩篇博客

MySQLi面向過程實踐---事務處理http://www.cnblogs.com/-beyond/p/7577232.html

PDO實現事務處理http://www.cnblogs.com/-beyond/p/7551177.html

MySQLi面向對象的事務處理涉及以下三個函數

public bool mysqli::begin_transaction ([ int $flags [, string $name ]] )
bool mysqli::commit ( void )
bool mysqli::rollback ( void )

示例代碼如下：

最重要的莫過於關閉自動提交

 1 <?php 
 2     $db=new mysqli("localhost","root","root","test");
 3 
 4     $db->begin_transaction();
 5     $db->autocommit(FALSE);//重要
 6     try{
 7         $sql_1="delete from aaa where uid = 2;";
 8         $db->query($sql_1);
 9         if($db->affected_rows<=0){
 
10             throw new Exception("failed to delete data one\n");
11             //如果操作一失敗，則拋出異常，不會繼續執行下個操作
12         }
13 
14         $sql_2="delete from aaa where uid = 999";
15         $db->query($sql_2);
16         if($db->affected_rows<=0){
17             throw new Exception("failed to delete data two\n");
 
18             //如果操作2失敗，則拋出異常
19         }
20 
21         if(!$db->commit()){
22             throw new Exception("failed to commit\n");
23             //如果提交操作出錯，則拋出異常
24         }
25         echo "success to delete two data\n";
26     } catch (Exception $e){
27         $db->rollback();
28         echo $e->getMessage();
29         echo "haven‘t finish all works\n";
30     }
31 
32     $db->close();
33 ?>

MySQLi面向對象實踐---事務處理