我有一个地狱的问题,我无法弄清楚我的生活.我为客户设置了一个超级简单的CMS.CMS的每个不同页面都包含名为session.php的文件.
session_start();
$username = $_SESSION['siteadmin'];
if (!$_SESSION['siteadmin']){
header( 'Location: login.php?status=2' );
}
不时地,随机的东西会从数据库中消失.因此,我设置了一个原始日志系统,通过CMS记录任何操作.好吧,它再次发生了.日志显示:
Logged in **.**.237.209 17:18 <-- thats me
Deleted board member id 12 195.42.102.25 16:49
Deleted board member id 15 195.42.102.25 16:49
Deleted board member id 8 195.42.102.25 16:49
Deleted board member id 10 195.42.102.25 16:49
Deleted board member id 9 195.42.102.25 16:49
Deleted board member id 4 195.42.102.25 16:49
Deleted board member id 3 195.42.102.25 16:49
Deleted board member id 5 195.42.102.25 16:49
Deleted board member id …我有一个层次结构系统设置,用于存储数据库中项目的级别和父ID.我想弄清楚的是我将如何找到用户选择的所有子行.以下是表结构的示例:
+----+---------+----------+-------+
| Id | label | parentid | level |
+----+---------+----------+-------+
| 1 | honda | 0 | 1 |
| 2 | accord | 1 | 2 |
| 3 | civic | 1 | 2 |
| 4 | element | 1 | 2 |
| 5 | v4 | 2 | 3 |
| 6 | v6 | 2 | 3 |
+----+---------+----------+-------+
那么,如果有人删除honda,我将如何删除层次结构中的所有内容？数据库只能达到3级.