图文详解如何用PHP实现权限管理功能-php手册-php.cn

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图文详解如何用PHP实现权限管理功能

PHPz

Jun 06, 2016 pm 07:55 PM

php Rights management function

下面小编就为大家带来一篇PHP实现权限管理功能示例。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧

权限管理系统，它主要是为了给不同的用户设定不同的权限，从而实现不同权限的用户登录之后使用的功能不一样。

首先先看下数据库

总共有5张表，users,roles和roleswork 3张表与另外2张表形成"w"型的关系，也是比较常见的一种权限数据库的方式，首先先做权限的设定，也就是管理层给不同用户设定不同权限。

2.做管理员的处理页面RBchuli.php

<?php
$uid = $_POST["uid"];
require_once "./DBDA.class.php";
$db = new DBDA();
$sql = "select rolesuid from users_roles where usersuid=&#39;{$uid}&#39;";
echo $db->StrQuery($sql,0); 保存角色信息的处理页面RBbtnchuli.php

Copy after login

保存角色信息的处理页面RBbtnchuli.php

<?php 
$uid = $_POST["uid"]; 
$role = $_POST["role"];//字符串 
$role = substr($role,0,strlen($role)-1); 
$arr = explode("|", $role); 
require_once "./DBDA.class.php"; 
$db = new DBDA(); 
//删除 
$sdel = "delete from users_roles where usersuid=&#39;{$uid}&#39;"; 
$db->query($sdel); 
//添加 
foreach($arr as $v){ 
  $sql = "insert into users_roles values(0,&#39;{$uid}&#39;,&#39;{$v}&#39;)"; 
  $db->query($sql); 
}

Copy after login

效果如图：

接下来做的是登录某个账号，查看自己的职能

3.用户登录页面RBlogin.php

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title></title>
    <script src="bootstrap/js/jquery-1.11.2.min.js"></script>
    <script src="bootstrap/js/bootstrap.min.js"></script>
    <link href="bootstrap/css/bootstrap.min.css" rel="external nofollow" rel="stylesheet" type="text/css"/>
  </head>
  <style>
    .title{
      margin-left: 600px;
      margin-top: 150px;
    }
    .quanju{
      margin-left: 450px;
      margin-top: -180px;
    }
    .name,.pwd{
      max-width: 120px;
    }
    .yangshi1{
      margin-top: 200px;
    }
  </style>
  <body>    
<form class="form-horizontal" role="form" action="RBloginchuli.php" method="post">
  <h3 class="title">用户登录</h3>
  <p class="quanju">
      <p class="form-group yangshi1">
        <label for="firstname" class="col-sm-2 control-label">用户名:</label>
        <p class="col-sm-10">
          <input type="text" class="form-control name" name="uid" placeholder="请输入用户名">
        </p>
      </p>
      <p class="form-group yangshi2">
        <label for="lastname" class="col-sm-2 control-label">密码:</label>
        <p class="col-sm-10">
          <input type="text" class="form-control pwd" name="pwd" placeholder="请输入密码">
        </p>
      </p>
      <p class="form-group">
        <p class="col-sm-offset-2 col-sm-10">
          <p class="checkbox">
            <label>
            <input type="checkbox">
            保存密码 </label>
            <label>
            <input type="checkbox">
            下次自动登录 </label>
          </p>
        </p>
      </p>
      <p class="form-group">
        <p class="col-sm-offset-2 col-sm-10">
          <button type="submit" class="btn btn-warning" value="登录" onclick="return login()" >
          登录
          </button>
          
        </p>
      </p>
    </p>  
  </form>    
  </body>
</html>

Copy after login

4.登录页面的处理页面RBloginchuli.php

<?php
session_start();
$uid = $_POST["uid"];
$pwd = $_POST["pwd"];
require_once "./DBDA.class.php";
$db = new DBDA();
$sql = "select pwd from users where uid=&#39;{$uid}&#39;";
$mm = $db->StrQuery($sql,0);
if(!empty($pwd) && $pwd==$mm){
  $_SESSION["uid"] = $uid;
  header("location:RBmain.php");
}else{
  echo "<script>alert(&#39;用户名或密码有误!&#39;)</script>";
}

Copy after login

5.最后做用户的主页面RBmain.php

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>权限主页面</title>    
  </head>
  <body>
    <?php
    session_start();
    if(empty($_SESSION["uid"])){
      header("location:RBlogin.php");
      exit;
    }
    $uid = $_SESSION["uid"];
    
    require_once "./DBDA.class.php";
    $db = new DBDA();
    //子查询
    $sql = "select * from roleswork where code in (select * from roles_roleswork where rolesuid in (select * from users_roles where usersuid=&#39;{$uid}&#39;))";
    $arr = $db->query($sql,0);
    foreach($arr as $v){
      echo "<p class=&#39;menu&#39;>{$v[1]}</p>";
    }    
    ?>
        
  </body>
</html>

Copy after login

效果如图：

以上就是小编为大家带来的PHP实现权限管理功能示例的全部内容了，希望大家喜欢哦~

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