php+redis实现注册、删除、编辑、分页、登录、关注等功能

本文实例讲述了php+redis实现注册、删除、编辑、分页、登录、关注等功能。分享给大家供大家参考，具体如下：

主要界面

​

连接redis

redis.php

<?php
//实例化
$redis = new Redis();
//连接服务器
$a=$redis->connect("localhost",6379);
//var_dump($a);
//授权
$redis->auth("107lab");

注册界面

add.php

<form action="reg.php" method="post">
用户名:<input type="text" name="username"><br>
密码:<input type="password" name="password"><br>
年龄:<input type="text" name="age"><br>
<input type="submit" value="注册">
<input type="reset" value="重填">
</form>

注册实现

reg.php

<?php
require("redis.php");
$username = $_POST['username'];
$password = md5($_POST['password']);
$age = $_POST['age'];
//echo $username.$password.$age;
$uid = $redis->incr("userid");//设置自增id，相当于主键
$redis->hMset("user:".$uid,array("uid"=>$uid,"username"=>$username,"password"=>$password,"age"=>$age));//用hash类型存储用户比较方便
//将用户id存入一个链表中，便于统计数据
$redis->rpush("uid",$uid);
//将用id存入以用户名为键的字符类型中，便于查看用户是否存在。
$redis->set("username:".$username,$uid);
header('location:list.php');

列表页面

list.php

<a href="add.php" rel="external nofollow" >注册</a>
<?php
require("redis.php");
if(!empty($_COOKIE['auth'])){
$id = $redis->get("auth:".$_COOKIE['auth']);
$name = $redis->hget("user:".$id,"username");
?>
欢迎您：<?php echo $name;?> <a href="logout.php" rel="external nofollow" >退出</a>
<?php } else { ?>
<a href="login.php" rel="external nofollow" >登录</a>
<?php } ?>
<?php
require("redis.php");
//用户总数
$count = $redis->lsize("uid");//获取链表的长度
//echo $count;
//页大小
$page_size = 3;
//当前页码
$page_num=(!empty($_GET['page']))?$_GET['page']:1;
//页总数
$page_count = ceil($count/$page_size);
$ids = $redis->lrange("uid",($page_num-1)*$page_size,(($page_num-1)*$page_size+$page_size-1));
//var_dump($ids);
foreach($ids as $v){
$data[]=$redis->hgetall("user:".$v);
}
/*
//以下为最初想到的分页处理，放入一个数组中，根据uid的最大值来当总个数，但是删除个别用户以后，uid不会变小，所以建议用链表，因为他有个lsize函数可以求出链表长度
//根据userid获取所有用户
for($i=1;$i<=($redis->get("userid"));$i++){
$data[]=$redis->hgetall("user:".$i);
}
//过滤空值
$data = array_filter($data);
//var_dump($data);
*/
?>
<table border=1>
<tr>
<th>uid</th>
<th>username</th>
<th>age</th>
<th>操作</th>
</tr>
<?php foreach($data as $v){ ?>
<tr>
<td><?php echo $v['uid']?></td>
<td><?php echo $v['username']?></td>
<td><?php echo $v['age']?></td>
<td>
<a href="del.php?id=<?php echo $v['uid'];?>" rel="external nofollow" >删除</a>
<a href="mod.php?id=<?php echo $v['uid'];?>" rel="external nofollow" >编辑</a>
<?php if(!empty($_COOKIE['auth']) && $id != $v['uid']){ ?>
<a href="addfans.php?id=<?php echo $v['uid'];?>&uid=<?php echo $id;?>" rel="external nofollow" >加关注</a>
<?php } ?>
</td>
</tr>
<?php } ?>
<tr>
<td colspan="4">
<?php if(($page_num-1)>=1){ ?>
<a href="?page=<?php echo ($page_num-1);?>" rel="external nofollow" >上一页</a>
<?php } ?>
<?php if(($page_num+1)<=$page_count){ ?>
<a href="?page=<?php echo ($page_num+1);?>" rel="external nofollow" >下一页</a>
<?php } ?>
<a href="?page=1" rel="external nofollow" >首页</a>
<a href="?page=<?php echo ($page_count);?>" rel="external nofollow" >尾页</a>
当前<?php echo $page_num;?>页
总共<?php echo $page_count;?>页
总共<?php echo $count;?>个用户
</td>
</tr>
</table>
<!--关注功能，建议用集合实现，因为集合元素唯一，并且可以容易求出两个用户粉丝之间交集与差集，进而进行好友推荐功能-->
<table border=1>
<caption>我关注了谁</caption>
<?php
$data = $redis->smembers("user:".$id.":following");
foreach($data as $v){
$row = $redis->hgetall("user:".$v);
?>
<tr>
<td><?php echo $row['uid'];?></td>
<td><?php echo $row['username'];?></td>
<td><?php echo $row['age'];?></td>
</tr>
<?php } ?>
<table>
<table border=1>
<caption>我的粉丝</caption>
<?php
$data = $redis->smembers("user:".$id.":followers");
foreach($data as $v){
$row = $redis->hgetall("user:".$v);
?>
<tr>
<td><?php echo $row['uid'];?></td>
<td><?php echo $row['username'];?></td>
<td><?php echo $row['age'];?></td>
</tr>
<?php } ?>
<table>

退出

logout.php

<?php
setcookie("auth","",time()-1);
header("location:list.php");

登录

login.php

<?php
require("redis.php");
$username = $_POST['username'];
$pass = $_POST['password'];
//根据注册时存储的以用户名为键的字符类型中查找用户id
$id = $redis->get("username:".$username);
if(!empty($id)){
$password = $redis->hget("user:".$id,"password");
if(md5($pass) == $password){
$auth = md5(time().$username.rand());
$redis->set("auth:".$auth,$id);
setcookie("auth",$auth,time()+86400);
header("location:list.php");
}
}
?>
<form action="" method="post">
用户名:<input type="text" name="username"/><br>
密码:<input type="password" name="password"><br>
<input type="submit" value="登录"/>
</form>

删除

del.php

<?php
require("redis.php");
$uid = $_GET['id'];
//echo $uid;
$username = $redis->hget("user:".$id,"username");
$a=$redis->del("user:".$uid);
$redis->del("username:".$username);
$redis->lrem("uid",$uid);
//var_dump($a);
header("location:list.php");

编辑界面

mod.php

<?php
require("redis.php");
$uid = $_GET['id'];
$data=$redis->hgetall("user:".$uid);
?>
<form action="doedit.php" method="post">
<input type="hidden" value="<?php echo $data['uid'];?>" name="uid">
用户名:<input type="text" name="username" value="<?php echo $data['username'];?>"><br>
年龄:<input type="text" name="age" value="<?php echo $data['age'];?>"><br>
<input type="submit" value="提交">
<input type="reset" value="重填">
</form>

编辑功能

doedit.php

<?php
require('redis.php');
$uid = $_POST['uid'];
$username = $_POST['username'];
$age = $_POST['age'];
$a=$redis->hmset("user:".$uid,array("username"=>$username,"age"=>$age));
if($a){
header("location:list.php");
}else{
header("location:mod.php?id=".$uid);
}

加关注

addfans.php

<?php
//关注功能，建议用集合实现，因为集合元素唯一，并且可以容易求出两个用户粉丝之间交集与差集，进而进行好友推荐功能
$id = $_GET['id'];
$uid = $_GET['uid'];
require("redis.php");
$redis->sadd("user:".$uid.":following",$id);
$redis->sadd("user:".$id.":followers",$uid);
header("location:list.php");