1 主页：index.php
<?php
header("content-type:text/html;charset=utf-8");
session_start(); //开启session
//判断登录时的session是否存在 如果存在则表示已经登录
if(!$_SESSION['islogin']){
// !$_SESSION['islogin'] 表示不存在 回到登录页面
header("Location: login.php");exit;
}
include 'conn.php';
//$link= mysqli_connect('localhost','root','root');
// mysqli_character_set_name();
mysqli_query($link,"set names utf8");
mysqli_select_db($link,'w_jiapu');
$sql="select * from zixun where ZX_id='10001'";
$result=mysqli_query($link,$sql);
$records=array();
while( $record = mysqli_fetch_array($result )){
//mysql_fetch_array()函数的作用类似foreach对数组的作用：遍历（结果集）
//它每次去的结果集的“一行数据”，并“装入”到数组 $record 中
//该数组的下标就是该select的字段名，值就是对应行的数据值
$records[]=$record;
}
// var_dump($records);
require 'moban.html';
//require 'login.html';
//为啥能那个顺利的展示，那个require 'login.html'; 就是把login.html页面照搬到这个b.php文件中
?>
2 模板HTML
<!-- 模板文件，利用HTML代码展示数据 -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>比赛列表</title>
</head>
<body>
<table>
<tr>
<th>ZX_id</th><th>ZX_name</th><th>ZX_fenlei</th><th>ZX_zuozhe</th><th>更新时间</th><th>浏览次数</th><th>发布状态</th>
</tr>
<?php foreach($records as $row) : ?>
<tr>
<td><?php echo $row['ZX_id'];?></td>
<td><?php echo $row['ZX_name'];?></td>
<td><?php echo $row['ZX_fenlei'];?></td>
<td><?php echo $row['ZX_zuozhe'];?></td>
<td><?php echo $row['gengxin_time'];?></td>
<td><?php echo $row['liulan_cishu'];?></td>
<td><?php echo $row['fabu_zhuangtai'];?></td>
</tr>
<?php endForeach;?>
</table>
</body>
</html>
3 数据库连接
<?PHP
//连接数据库
$link = mysqli_connect("localhost","用户名","密码","数据库名"); //注意后面的dBname，不是数据表
if (!$link) {
die("连接失败: " . mysqli_connect_error());
}
?>
4 快速建立数据库
CREATE DATABASE `thkphp5` ;
use thkphp5 ;
create table zixun(
ZX_id int not null auto_increment primary key comment '咨询ID号',
ZX_name VARCHAR(80) NOT NULL COMMENT '咨询标题',
ZX_fenlei varchar(80) not null comment '资讯分类',
ZX_zuozhe varchar(80) not null comment '资讯作者',
gengxin_time DATETIME NOT NULL DEFAULT '2016-01-01 01:01:01' COMMENT '更新时间',
liulan_cishu int NOT NULL COMMENT '浏览次数',
fabu_zhuangtai VARCHAR(50) NOT NULL COMMENT '发布状态'
)engine=MyISAM charset=utf8;
INSERT into zixun(ZX_id, ZX_name, ZX_fenlei, ZX_zuozhe, gengxin_time, liulan_cishu, fabu_zhuangtai) values(10001, 'PHP', '理论', '王超', '2017-08-07 11:58:01', 100, '草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10002,'C语言','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10003,'JAVA语言','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10004,'Mysql语言','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10005,'html','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10006,'spring','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10007,'scence','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10008,'computer','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10009,'math','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(100010,'english','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10011,'word','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10012,'jsp','理论','王超','2017-08-07 11:58:01',100,'草稿');
INSERT into zixun(ZX_id,ZX_name,ZX_fenlei,ZX_zuozhe,gengxin_time,liulan_cishu,fabu_zhuangtai) values(10013,'CSS','理论','王超','2017-08-07 11:58:01',100,'草稿');
5 需要登录的：
在index 开始加上 session_start();
并通过 $_SESSION['username'] 传递id,后面登录成功调用时，用ID 来筛选
session_start(); //开启session
$_SESSION['username'] = $username;
$_SESSION['islogin'] = true;
$_SESSION['user_id'] = $user_id;
$_SESSION["code"]=mt_rand(0, 100000);//给session附一个随机值，防止用户直接通过调用界面访问welcome.php
