跟着百度学PHP[14]-COOKIE的应用/网站登陆案例完整案例

先在数据库当中创建以下数据：

mysql> create table user(
    -> id int not null auto_increment,
    -> username varchar(50) not null default '',
    -> password char(32) not null default '',
    -> email varchar(80) not null default '',
    -> allow_1 smallint not null default 0,
    -> allow_2 smallint not null default 0,
    -> allow_3 smallint not null default 0,
    -> primary key(id));
mysql> insert into user(username,password,email,allow_1,allow_2,allow_3) values('admin',md5('admin'),'admin@admin.com',1,1,1);
Query OK, 1 row affected (0.18 sec)

mysql> insert into user(username,password,email,allow_1,allow_2,allow_3) values('shuaige',md5('shuaige'),'shuai@admin.com',0,1,1);
Query OK, 1 row affected (0.12 sec)

mysql> insert into user(username,password,email,allow_1,allow_2,allow_3) values('daniu',md5('daniu'),'daniu@admin.com',0,0,1);
Query OK, 1 row affected (0.14 sec)

allow_x中的一代表用户的权限，其值中的 1代表拥有权限，0代表没有权限。看一下结构。

mysql> select * from user;
+----+----------+----------------------------------+-----------------+---------+---------+---------+
| id | username | password                         | email           | allow_1 | allow_2 | allow_3 |
+----+----------+----------------------------------+-----------------+---------+---------+---------+
|  1 | admin    | 21232f297a57a5a743894a0e4a801fc3 | admin@admin.com |       1 |       1 |       1 |
|  2 | shuaige  | 37d2b9990df5a6843caf19352fee42a6 | shuai@admin.com |       0 |       1 |       1 |
|  3 | daniu    | 76720c5adee75ce9c7779500893fb648 | daniu@admin.com |       0 |       0 |       1 |
+----+----------+----------------------------------+-----------------+---------+---------+---------+
3 rows in set (0.00 sec)

然后我们写几个文件夹：

1. Index.php 首页
2. Cookie.php Cookie页面
3. Content.php 文章页面
4. Exit.php  离开页面

第一个Index.php

<?php 
echo "你好这是首页.<br />";
echo "<a href='login.php'>管理员页面登陆</a>";
 ?>

Index.php