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