php+redis实现小型的用户管理系统

一、redis.php ，用于链接redis数据库

<?php  
    //实例化  
    $redis = new Redis();  
    //链接服务器  
    $redis->connect("localhost");  
    //受权  
    $redis->auth("lamplijie");

二、add.php，用于添加用户

<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="从新填写"/>  
	</form>

三、reg.php，用于注册用户

<?php  
    require("redis.php");  
    $username = $_POST['username'];  
    $password = md5($_POST['password']);  
    $age = $_POST['age'];  
    echo $uid = $redis->incr("userid");  
    $redis->hmset("user:".$uid,array("uid"=>$uid,"username"=>$username,"password"=>$password,"age"=>$age));  
    $redis->rpush("uid",$uid);  
    $redis->set("username:".$username,$uid);  
    header("location:list.php");

四、list.php，用户列表

<a href="add.php">注册</a>  
<?php  
   require("redis.php");  
   if(!emptyempty($_COOKIE['auth'])){  
       $id = $redis->get("auth:".$COOKIE['auth']);  
       $name = $redis->hget("user:".$id,"username");  
?>  
欢迎您，<?php echo $name?>,<a href="logout.php">退出</a>  
<?php  
}else{  
?>  
<a href="login.php">登录</a>  
<?php  
}  
    //用户总数  
    $count = $redis->lsize("uid");  
      
    //页大小  
    $page_size = 3;  
  
    //当前页码  
    $page_num = (!emptyempty($_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);  
      
    /* 
    for($i=1;$i<=($redis->get("userid"));$i++) { 
        $data[] = $redis->hgetall("user:".$i); 
    }*/  
      
    foreach($ids as $v){  
        $data[] = $redis->hgetall("user:".$v);  
    }  
      
    //var_dump($data);  
    //$data = array_filter($data);  
?>  
<table border="1">  
   <tr>  
      <th>uid</th>  
      <th>username</th>  
      <th>age</th>  
      <th>操做</th>  
   </tr>  
<?php foreach($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']?>">删除</a>  
           <a href="mod.php?id=<?php echo $v['uid']?>">编辑</a>  
           <?php if(!emptyempty($_COOKIE['auth']) && $id!=$v['uid']){?>  
               <a href="addfans.php?id=<?php echo $v['uid']?>&uid=<?php echo $id?>">加关注</a>  
           <?php } ?>  
       </td>  
   </tr>  
<?php}?>  
<tr>  
   <td colspan="4">  
       <a href="?page=<?php echo(($page_num-1)<=1)?1:($page_num-1) ?>">上一页</a>  
       <a href="?page=<?php echo(($page_num+1)>=$page_count)?$page_count:($page_num+1) ?>">下一页</a>  
       <a href="?page=1">首页</a>  
       <a href="?page=<?php echo $page_count ?>">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>  
  
<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>个人粉丝</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  
	       }  
	   ?>

五、del.php，用户删除

<?php  
	   require("redis.php");  
	   $uid = $_GET['id'];  
	   $redis->del("user:".$uid);  
	   $redis->lrem("uid",$uid);  
	   header("localhost:list.php");

六、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="修改"/>  
	    <input type="reset" value="从新填写"/>  
	</form>

七、doedit.php，信息更新

<?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);  
	   }

八、login.php，登陆页面

<?php  
    require("redis.php");  
    $username = $_POST['username'];  
    $pass = $_POST['password'];  
    $id = $redis->get("username:".$username);  
    if(!emptyempty($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>

九、logout.php，退出

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

十、adfans.php，添加关注

<?php  
	    $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");

固然，采用sdiff user:1:following user:2:following语句，用户1能够向用户2推荐关注（即用户1的关注与用户2的关注的差集）。