php+redis实现注册、删除、编辑、分页、登录、关注等功能示例

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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");

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