php+redis實現註冊、刪除、編輯、分頁、登陸、關注等功能

本文實例講述了php+redis實現註冊、刪除、編輯、分頁、登陸、關注等功能。分享給你們供你們參考，具體以下：

主要界面

​

 

鏈接redis

redis.php

1 <?php
2   //實例化
3   $redis = new Redis();
4   //鏈接服務器
5   $a=$redis->connect("localhost",6379);
6   //var_dump($a);
7   //受權
8   $redis->auth("107lab");

 

 

註冊界面

add.php

1 <form action="reg.php" method="post">
2   用戶名:<input type="text" name="username"><br>
3   密碼:<input type="password" name="password"><br>
4   年齡:<input type="text" name="age"><br>
5   <input type="submit" value="註冊">
6   <input type="reset" value="重填">
7 </form>

 

註冊實現

reg.php

 1 <?php
 2   require("redis.php");
 3   $username = $_POST['username'];
 4   $password = md5($_POST['password']);
 5   $age = $_POST['age'];
 6   //echo $username.$password.$age;
 7   $uid = $redis->incr("userid");//設置自增id，至關於主鍵
 8   $redis->hMset("user:".$uid,array("uid"=>$uid,"username"=>$username,"password"=>$password,"age"=>$age));//用hash類型存儲用戶比較方便
 9   //將用戶id存入一個鏈表中，便於統計數據
10   $redis->rpush("uid",$uid);
11   //將用id存入以用戶名爲鍵的字符類型中，便於查看用戶是否存在。
12   $redis->set("username:".$username,$uid);
13   header('location:list.php');
14 
15  

 

列表頁面

list.php

  1 <a href="add.php" rel="external nofollow" >註冊</a>
  2 <?php
  3   require("redis.php");
  4   if(!empty($_COOKIE['auth'])){
  5     $id = $redis->get("auth:".$_COOKIE['auth']);
  6     $name = $redis->hget("user:".$id,"username");
  7 ?>
  8     歡迎您：<?php echo $name;?> <a href="logout.php" rel="external nofollow" >退出</a>
  9   <?php } else { ?>
 10   <a href="login.php" rel="external nofollow" >登陸</a>
 11   <?php } ?>
 12 <?php
 13   require("redis.php");
 14   //用戶總數
 15   $count = $redis->lsize("uid");//獲取鏈表的長度
 16   //echo $count;
 17   //頁大小
 18   $page_size = 3;
 19   //當前頁碼
 20   $page_num=(!empty($_GET['page']))?$_GET['page']:1;
 21   //頁總數
 22   $page_count = ceil($count/$page_size);
 23   $ids = $redis->lrange("uid",($page_num-1)*$page_size,(($page_num-1)*$page_size+$page_size-1));
 24   //var_dump($ids);
 25   foreach($ids as $v){
 26     $data[]=$redis->hgetall("user:".$v);
 27   }
 28   /*
 29   //如下爲最初想到的分頁處理，放入一個數組中，根據uid的最大值來當總個數，可是刪除個別用戶之後，uid不會變小，因此建議用鏈表，由於他有個lsize函數能夠求出鏈表長度
 30   //根據userid獲取全部用戶
 31   for($i=1;$i<=($redis->get("userid"));$i++){
 32     $data[]=$redis->hgetall("user:".$i);
 33   }
 34   //過濾空值
 35   $data = array_filter($data);
 36   //var_dump($data);
 37   */
 38 ?>
 39 <table border=1>
 40   <tr>
 41     <th>uid</th>
 42     <th>username</th>
 43     <th>age</th>
 44     <th>操做</th>
 45   </tr>
 46   <?php foreach($data as $v){ ?>
 47   <tr>
 48     <td><?php echo $v['uid']?></td>
 49     <td><?php echo $v['username']?></td>
 50     <td><?php echo $v['age']?></td>
 51     <td>
 52       <a href="del.php?id=<?php echo $v['uid'];?>" rel="external nofollow" >刪除</a>
 53       <a href="mod.php?id=<?php echo $v['uid'];?>" rel="external nofollow" >編輯</a>
 54       <?php if(!empty($_COOKIE['auth']) && $id != $v['uid']){ ?>
 55       <a href="addfans.php?id=<?php echo $v['uid'];?>&uid=<?php echo $id;?>" rel="external nofollow" >加關注</a>
 56       <?php } ?>
 57     </td>
 58   </tr>
 59   <?php } ?>
 60   <tr>
 61     <td colspan="4">
 62       <?php if(($page_num-1)>=1){ ?>
 63       <a href="?page=<?php echo ($page_num-1);?>" rel="external nofollow" >上一頁</a>
 64       <?php } ?>
 65       <?php if(($page_num+1)<=$page_count){ ?>
 66       <a href="?page=<?php echo ($page_num+1);?>" rel="external nofollow" >下一頁</a>
 67       <?php } ?>
 68       <a href="?page=1" rel="external nofollow" >首頁</a>
 69       <a href="?page=<?php echo ($page_count);?>" rel="external nofollow" >尾頁</a>
 70       當前<?php echo $page_num;?>頁
 71       總共<?php echo $page_count;?>頁
 72       總共<?php echo $count;?>個用戶
 73     </td>
 74   </tr>
 75 </table>
 76 <!--關注功能，建議用集合實現，由於集合元素惟一，而且能夠容易求出兩個用戶粉絲之間交集與差集，進而進行好友推薦功能-->
 77 <table border=1>
 78   <caption>我關注了誰</caption>
 79   <?php
 80     $data = $redis->smembers("user:".$id.":following");
 81     foreach($data as $v){
 82       $row = $redis->hgetall("user:".$v);
 83   ?>
 84   <tr>
 85     <td><?php echo $row['uid'];?></td>
 86     <td><?php echo $row['username'];?></td>
 87     <td><?php echo $row['age'];?></td>
 88   </tr>
 89   <?php } ?>
 90 <table>
 91 <table border=1>
 92   <caption>個人粉絲</caption>
 93   <?php
 94     $data = $redis->smembers("user:".$id.":followers");
 95     foreach($data as $v){
 96       $row = $redis->hgetall("user:".$v);
 97   ?>
 98   <tr>
 99     <td><?php echo $row['uid'];?></td>
100     <td><?php echo $row['username'];?></td>
101     <td><?php echo $row['age'];?></td>
102   </tr>
103   <?php } ?>
104 <table>

 

退出

logout.php

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

 

 

登陸

login.php

 1 <?php
 2   require("redis.php");
 3   $username = $_POST['username'];
 4   $pass = $_POST['password'];
 5   //根據註冊時存儲的以用戶名爲鍵的字符類型中查找用戶id
 6   $id = $redis->get("username:".$username);
 7   if(!empty($id)){
 8     $password = $redis->hget("user:".$id,"password");
 9     if(md5($pass) == $password){
10       $auth = md5(time().$username.rand());
11       $redis->set("auth:".$auth,$id);
12       setcookie("auth",$auth,time()+86400);
13       header("location:list.php");
14     }
15   }
16 ?>
17 <form action="" method="post">
18   用戶名:<input type="text" name="username"/><br>
19   密碼:<input type="password" name="password"><br>
20   <input type="submit" value="登陸"/>
21 </form>

 

 

刪除

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");

 

 

編輯界面

mod.php

 1 <?php
 2   require("redis.php");
 3   $uid = $_GET['id'];
 4   $data=$redis->hgetall("user:".$uid);
 5 ?>
 6 <form action="doedit.php" method="post">
 7   <input type="hidden" value="<?php echo $data['uid'];?>" name="uid">
 8   用戶名:<input type="text" name="username" value="<?php echo $data['username'];?>"><br>
 9   年齡:<input type="text" name="age" value="<?php echo $data['age'];?>"><br>
10   <input type="submit" value="提交">
11   <input type="reset" value="重填">
12 </form>

 

 

編輯功能

doedit.php

 1 <?php
 2   require('redis.php');
 3   $uid = $_POST['uid'];
 4   $username = $_POST['username'];
 5   $age = $_POST['age'];
 6   $a=$redis->hmset("user:".$uid,array("username"=>$username,"age"=>$age));
 7   if($a){
 8     header("location:list.php");
 9   }else{
10     header("location:mod.php?id=".$uid);
11   }

 

 

加關注

addfans.php

1 <?php
2 //關注功能，建議用集合實現，由於集合元素惟一，而且能夠容易求出兩個用戶粉絲之間交集與差集，進而進行好友推薦功能
3   $id = $_GET['id'];
4   $uid = $_GET['uid'];
5   require("redis.php");
6   $redis->sadd("user:".$uid.":following",$id);
7   $redis->sadd("user:".$id.":followers",$uid);
8   header("location:list.php");