- <?php
- /**php+Mysqli利用事务处理转账问题实例
- **/
- header("Content-type:text/html; charset=utf-8");
- $mysqli = new mysqli("localhost", "root", "064319", "php");
- $mysqli->set_charset("utf8");
- if($mysqli->connect_errno) {
- die('数据库连接失败'.$mysqli->connect_error);
- }
- $mysqli->autocommit(false); //自动提交模式设为false
- $flag = true; //事务是否成功执行的标志
- $query = "update account set balance=balance-1000 where id=3";
- $result = $mysqli->query($query);
- $affected_count = $mysqli->affected_rows;
- if(!result || $affected_count == 0) { //失败
- $flag = false;
- }
- $query = "update account set balance=balance+1000 where id=2";
- $result = $mysqli->query($query);
- $affected_count = $mysqli->affected_rows;
- if(!$result || $affected_count == 0) {
- $flag = false;
- }
- if($flag) {
- $mysqli->commit();
- echo '转账成功';
- } else {
- $mysqli->rollback();
- echo '转账失败';
- }
- $mysqli->autocommit(true); //重新设置事务为自动提交
- $mysqli->close();
- ?>
- //该片段来自于http://www.codesnippet.cn/detail/2304201512415.html
来源: http://www.codesnippet.cn/detail/2304201512415.html