EOT;
}
```
然后在需要进行跳转的地方使用此函数进行跳转
## 编写分页功能
下载分页类文件：[https://pan.baidu.com/s/114iEhrHdoXX7KHYOqCt76w?pwd=6666](https://pan.baidu.com/s/114iEhrHdoXX7KHYOqCt76w?pwd=6666)
将Page.class.php文件放到common目录下
编辑article_list.php文件，在开始的php代码块处获取如下变量
```php
$page = isset($_GET['page']) ? $_GET['page'] : 1;
$subPages = 8;
```
编辑article_list.php文件，在显示页码处改成如下代码
```php
query("select * from article");
$result_count = $result->num_rows;
$p = new Page($result_count, 4, $page,$subPages);
echo $p->showPages();
?>
```
编辑article_list.php文件，在获取文章列表的sql语句后做如下修改
```sql
"select a.id,a.title,a.author,a.c_time,b.class_name from article as a,cate as b where a.catid=b.id order by a.id limit " . ($page-1)*8 . ",$subPages"
```
## 系统设置功能
首先将config表修改成如下结构
编写system.php代码
```php
query("select * from config");
$row = $result->fetch_assoc();
if(isset($_POST['submit'])){
$url = filterstr($_POST['url']);
$title = filterstr($_POST['title']);
$keyword = filterstr($_POST['keyword']);
$email = filterstr($_POST['email']);
$admin = filterstr($_POST['admin']);
$icp = filterstr($_POST['icp']);
$address = filterstr($_POST['address']);
$result = $conn->query("update config set url='$url', title='$title', keyword='$keyword', email='$email', admin='$admin', icp='$icp', address='$address'");
if($result){
redirect("1","system.php","内容修改成功");
}else{
redirect("1","system.php","内容修改失败");
}
}
?>
后台管理
```
最终的效果
## 后台剩下的步骤
依次完成如下功能模块
- cate_list.php
- cate_add.php
- cate_edit.php
- flink_list.php
- flink_add.php
- flink_edit.php
- change_pwd.php
并且优化细节
## 退出功能
在config.php中加入如下代码
```php
if(isset($_GET['logout'])){
session_destroy();
redirect('2','login.php','退出登陆成功！');
}
```
然后将所有退出的超链接改为
```html
?logout
```
## 显示系统信息
首先打印系统变量，查看需要的信息
```php
print_r($_SERVER);
//显示结果如下
Array
(
[HTTP_HOST] => localhost:8080
[HTTP_CONNECTION] => keep-alive
[HTTP_SEC_CH_UA] => "Google Chrome";v="107", "Chromium";v="107", "Not=A?Brand";v="24"
[HTTP_SEC_CH_UA_MOBILE] => ?0
[HTTP_SEC_CH_UA_PLATFORM] => "Windows"
[HTTP_UPGRADE_INSECURE_REQUESTS] => 1
[HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36
[HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
[HTTP_SEC_FETCH_SITE] => none
[HTTP_SEC_FETCH_MODE] => navigate
[HTTP_SEC_FETCH_USER] => ?1
[HTTP_SEC_FETCH_DEST] => document
[HTTP_ACCEPT_ENCODING] => gzip, deflate, br
[HTTP_ACCEPT_LANGUAGE] => zh-CN,zh;q=0.9,zh-TW;q=0.8
[HTTP_COOKIE] => PHPSESSID=349e6574s902hllac20hh563s2
[PATH] => C:\Program Files (x86)\VMware\VMware Workstation\bin\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\Microsoft VS Code\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Users\simid\AppData\Local\Microsoft\WindowsApps;
[SystemRoot] => C:\Windows
[COMSPEC] => C:\Windows\system32\cmd.exe
[PATHEXT] => .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
[WINDIR] => C:\Windows
[SERVER_SIGNATURE] =>
[SERVER_SOFTWARE] => Apache/2.4.6 (Win32) PHP/5.4.17
[SERVER_NAME] => localhost
[SERVER_ADDR] => ::1
[SERVER_PORT] => 8080
[REMOTE_ADDR] => ::1
[DOCUMENT_ROOT] => C:/Users/simid/Desktop/usbwebserver/root
[REQUEST_SCHEME] => http
[CONTEXT_PREFIX] =>
[CONTEXT_DOCUMENT_ROOT] => C:/Users/simid/Desktop/usbwebserver/root
[SERVER_ADMIN] => mail@localhost
[SCRIPT_FILENAME] => C:/Users/simid/Desktop/usbwebserver/root/admin/main.php
[REMOTE_PORT] => 6751
[GATEWAY_INTERFACE] => CGI/1.1
[SERVER_PROTOCOL] => HTTP/1.1
[REQUEST_METHOD] => GET
[QUERY_STRING] =>
[REQUEST_URI] => /admin/main.php
[SCRIPT_NAME] => /admin/main.php
[PHP_SELF] => /admin/main.php
[REQUEST_TIME_FLOAT] => 1671169877.04
[REQUEST_TIME] => 1671169877
)
```
挑选需要的信息内容填入对应的位置，最终效果和代码
```html
-
-
-
-
-
-
-
```
## 导入前端代码
前端代码示例下载地址：[https://pan.baidu.com/s/1dqmwUdXR77MyWiyhCIySkQ?pwd=6666](https://pan.baidu.com/s/1dqmwUdXR77MyWiyhCIySkQ?pwd=6666)
获取博客系统信息
```php
$result = $conn->query("select * from config");
$web = $result->fetch_assoc()
//下面在需要的地方进行替换，比如标题
<?php echo $web['title'] ?>
```
修改分类
```php
-
首页
query("select * from cate");
while($cate = $result->fetch_assoc()){
?>
-
-
关于我
```
修改文章列表
```php
query("select a.id,a.title,a.content,a.author,a.c_time,b.class_name from article as a left join cate as b on a.catid=b.id order by a.id desc");
while ($row = $result->fetch_assoc()) {
?>
```
分页功能
```php
$page = isset($_GET['page']) ? $_GET['page'] : 1;
$subPages = 8;
//将文章查询的sql语句修改成如下
"select a.id,a.title,a.author,a.c_time,b.class_name from article as a left join cate as b on a.catid=b.id order by a.id desc limit " . ($page-1)*8 . ",$subPages"
//页码显示的代码
query("select * from article");
$result_count = $result->num_rows;
$p = new Page($result_count, 4, $page,$subPages);
echo $p->showPages();
?>
```
## 文章显示页面
```php
query("select a.id,a.content,a.title,a.author,a.c_time,b.class_name from article as a left join cate as b on a.catid=b.id where a.id=$id");
$row = $result->fetch_assoc();
}else{
redirect('2', 'index.php', '该页面不存在');
die("404 not find");
}
?>
//之后在每个需要替换的地方使用$row['xxx']
```
评论功能同学们自己练习完成
## 前端分类功能
写一个cate.php文件，实现分类文章显示
## 热门文章
可以在数据库中追加每篇文章的阅读数功能，然后排列出热度靠前的文章