这里有新鲜出炉的 Redis 设计与实现(第一版),程序狗速度看过来!
Redis 是一个开源的使用 ANSI C 语言编写、支持网络、可基于内存亦可持久化的日志型、Key-Value 数据库,并提供多种语言的 API。
这篇文章主要介绍了 php+redis 实现注册、删除、编辑、分页、登录、关注等功能, 结合实例形式分析了 php+redis 项目开发中常用的注册, 删除, 编辑, 分页, 登录, 关注功能相关实现技巧, 需要的朋友可以参考下
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");
希望本文所述对大家 PHP 程序设计有所帮助。
来源: http://www.phperz.com/article/17/0824/340547.html