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PHP实现权限管理功能
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。
1.管理员页面RBAC.php
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>权限管理</title>
<script src="bootstrap/js/jquery-1.11.2.min.js"></script>
</head>
<body>
<h2>用户与角色管理</h2>
<div><select id="user">
<? "./DBDA.class.php" = = "select * from users" = ->query(,0( "<option value='{[0]}'>{[2]}</option>"?>
</select>
</div>
<br />
<div><? = "select * from roles" = ->query(,0( "<input type='checkbox' class='ck' value='{[0]}'>{[1]}"?>
</div>
<br />
<input type="button" value="确认" id="btn"/>
</body>
<script>"#user").change("#btn").click( uid = $("#user"). ck = $(".ck" role = "";
(i=0;i<ck.length;i++ v = ck.eq(i).(ck.eq(i).prop("checked"+= ck.eq(i).val()+"|".:"POST",:"RBbtnchuli.php",:{uid:uid,role:role},:"TEXT",:"修改成功!" uid = $("#user")..:"RBchuli.php",:{uid:uid},:"POST",:"TEXT",: role = data.("|" ck = $(".ck".prop("checked",(i=0;i<ck.length;i++ v = ck.eq(i).(role.indexOf(v)>=0.eq(i).prop("checked",</script>
</html>
2.做管理员的处理页面RBchuli.php
<?php$uid = $_POST["uid"];require_once "./DBDA.class.php";$db = new DBDA();$sql = "select rolesuid from users_roles where usersuid='{$uid}'";echo $db->StrQuery($sql,0);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$sdel = "delete from users_roles where usersuid='{$uid}'";$db->query($sdel);//添加foreach($arr as $v){ $sql = "insert into users_roles values(0,'{$uid}','{$v}')"; $db->query($sql);} |
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="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>
<div class="quanju">
<div class="form-group yangshi1">
<label for="firstname" class="col-sm-2 control-label">用户名:</label>
<div class="col-sm-10">
<input type="text" class="form-control name" name="uid" placeholder="请输入用户名">
</div>
</div>
<div class="form-group yangshi2">
<label for="lastname" class="col-sm-2 control-label">密码:</label>
<div class="col-sm-10">
<input type="text" class="form-control pwd" name="pwd" placeholder="请输入密码">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<div class="checkbox">
<label>
<input type="checkbox">
保存密码 </label>
<label>
<input type="checkbox">
下次自动登录 </label>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-warning" value="登录" onclick="return login()" >
登录 </button>
</div>
</div>
</div>
</form>
</body>
</html>
4.登录页面的处理页面RBloginchuli.php
<?phpsession_start();$uid = $_POST["uid"];$pwd = $_POST["pwd"];require_once "./DBDA.class.php";$db = new DBDA();$sql = "select pwd from users where uid='{$uid}'";$mm = $db->StrQuery($sql,0);if(!empty($pwd) && $pwd==$mm){ $_SESSION["uid"] = $uid; header("location:RBmain.php");
}else{ echo "<script>alert('用户名或密码有误!')</script>";
}
5.最后做用户的主页面RBmain.php
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>权限主页面</title>
</head>
<body>
<?php session_start(); if(empty($_SESSION["uid"])){ header("location:RBlogin.php"); exit;
} $uid = $_SESSION["uid"];
require_once "./DBDA.class.php"; $db = new DBDA(); //子查询
$sql = "select * from roleswork where code in (select * from roles_roleswork where rolesuid in (select * from users_roles where usersuid='{$uid}'))"; $arr = $db->query($sql,0); foreach($arr as $v){ echo "<div class='menu'>{$v[1]}</div>";
}
?>
</body>
</html>
效果如图：
编辑:--ns868
