为mysql数据库添加添加事务处理的方法

语句如下：alter table tablename engine=innodb;
用到的表

create table if not exists `test` (
`id` int(10) not null auto_increment,
`websitename` varchar(200) character set utf8 not null,
`websiteurl` varchar(200) character set utf8 not null,
primary key (`id`)
) engine=innodb default charset=utf8 auto_increment=1 ;

第二不就是如果和添加事物：

<?php
$con = mysql_connect("localhost", "root", "vertrigo");
//开始事务
mysql_db_query("mysqlnew","begin");
$insertsql ="insert into test(websitename,websiteurl)values('','//www.jb51.net')";//该记录插入数据库
mysql_db_query("mysqlnew",$insertsql);
$insertsql ="insert into test(websitename,websiteurl)values('百度','http://www.baidu.com')";//该记录插入数据库
mysql_db_query("mysqlnew",$insertsql);
//结束事务事务
mysql_db_query("mysqlnew","commit");
//开始事务
mysql_db_query("mysqlnew","begin");
$insertsql ="insert into test(websitename,websiteurl)values('google','http://www.google.com.hk')";//该记录不插入数据库
mysql_db_query("mysqlnew",$insertsql);
//结束事务事务
mysql_db_query("mysqlnew","rollback");
//开始事务
mysql_db_query("mysqlnew","begin");
$insertsql ="insert into test(websitename,websiteurl)values('bing','http://www.bing.com')";//该记录不插入数据库
mysql_db_query("mysqlnew",$insertsql);
?>

插入的数据
id websitename websiteurl
1 //www.jb51.net
2 百度 http://www.baidu.com