php-人员权限管理（RBAC）
权限管理可以想做vip的功能，普通用户和vip用户的功能是不一样的，大致会用到五张表：用户表、角色表、功能表，还有他们之间互相关联的表：用户与角色表、角色与功能表
我用到的五张表如下：
一.首先写的是管理员页面
1.用下拉列表显示用户名
<div>
<select id="user">
<?php
require"../DBDA.class.php";
$db = new DBDA();
$sql = "select * from users";
$arr = $db->query($sql,1);
foreach($arr as $v)
{
echo"<option value='{$v[0]}'>{$v[2]}</option>";
}
?>
</select>
</div>
2.因为上面已经造了新对象，所以在显示角色名时直接从SQL语句开始写
<div>请选择角色：
<?php
$sql = "select * from juese";
$arr = $db->query($sql,1);
foreach($arr as $v)
{
echo "<input type='checkbox' class='ck' value='{$v[0]}'/>{$v[1]}";
}
?>
</div>
<br/>
3.为了修改权限加一个确认保存按钮
<input type="button" value="保存" id="baocun" />
4.这样，再考虑怎么让数据库中用户本有的角色显示出来，那就是要用到下拉列表和复选框的值了
可以把它写入方法里，然后调用这个方法
function Xuan()
{
var uid = $("#user").val();
$.ajax({
url:"chuli.php",
data:{uid:uid},
type:"POST",
dataType:"TEXT",
success: function(data){
var js = data.trim().split("|");
var ck = $(".ck");
ck.prop("checked",false);
for(var i=0;i<ck.length;i++)
{
var v = ck.eq(i).val();
if(js.indexOf(v)>=0)
{
ck.eq(i).prop("checked",true);
}
}
}
})
}
5.各项值的处理页面
<?php
require"../DBDA.class.php";
$db = new DBDA();
$uid = $_POST["uid"];
$sql = "select jueseid from userinjuese where userid='{$uid}'";
echo $db->strquery($sql);
效果如下：
6.最后就是保存修改后的值了，可以直接用全部删除在重新写入的方法来进行值的选择；对保存按钮添加单击事件
Xuan();
$("#user").change(function(){
Xuan();
})
$("#baocun").click(function(){
var uid = $("#user").val();
var str = "";
var ck = $(".ck");
for(var i=0;i<ck.length;i++)
{
if(ck.eq(i).prop("checked"))
{
str = str + ck.eq(i).val()+",";
}
}
str = str.substr(0,str.length-1);
$.ajax({
url:"add.php",
data:{uid:uid,js:str},
type:"POST",
dataType:"TEXT",
success: function(data){
alert("保存成功！");
}
})
})
7.保存的处理页面
<?php
require "../DBDA.class.php";
$db = new DBDA();
$uid = $_POST["uid"];
$js = $_POST["js"];
//清空原有角色
$sql = "delete from userinjuese where userid='{$uid}'";
$db->query($sql);
//添加选中的角色
$ajs = explode(",",$js);
foreach($ajs as $v)
{
$sql = "insert into userinjuese values('','{$uid}','{$v}')";
$db->query($sql);
}
效果如下：
下面代码用来copy用，注意AJAX需要引用Jquery
1.guanli.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="../jquery-3.2.0.min.js"></script>
</head>
<body>
<h1>用户角色对应</h1>
<div>
<select id="user">
<?php
require"../DBDA.class.php";
$db = new DBDA();
$sql = "select * from users";
$arr = $db->query($sql,1);
foreach($arr as $v)
{
echo"<option value='{$v[0]}'>{$v[2]}</option>";
}
?>
</select>
</div>
<br/>
<div>请选择角色：
<?php
$sql = "select * from juese";
$arr = $db->query($sql,1);
foreach($arr as $v)
{
echo "<input type='checkbox' class='ck' value='{$v[0]}'/>{$v[1]}";
}
?>
</div>
<br/>
<input type="button" value="保存" id="baocun" />
</body>
<script type="text/javascript">
Xuan();
$("#user").change(function(){
Xuan();
})
$("#baocun").click(function(){
var uid = $("#user").val();
var str = "";
var ck = $(".ck");
for(var i=0;i<ck.length;i++)
{
if(ck.eq(i).prop("checked"))
{
str = str + ck.eq(i).val()+",";
}
}
str = str.substr(0,str.length-1);
$.ajax({
url:"add.php",
data:{uid:uid,js:str},
type:"POST",
dataType:"TEXT",
success: function(data){
alert("保存成功！");
}
})
})
function Xuan()
{
var uid = $("#user").val();
$.ajax({
url:"chuli.php",
data:{uid:uid},
type:"POST",
dataType:"TEXT",
success: function(data){
var js = data.trim().split("|");
var ck = $(".ck");
ck.prop("checked",false);
for(var i=0;i<ck.length;i++)
{
var v = ck.eq(i).val();
if(js.indexOf(v)>=0)
{
ck.eq(i).prop("checked",true);
}
}
}
})
}
</script>
</html>
2.chuli.php
<?php
require"../DBDA.class.php";
$db = new DBDA();
$uid = $_POST["uid"];
$sql = "select jueseid from userinjuese where userid='{$uid}'";
echo $db->strquery($sql);
3.保存的处理页面 add.php
<?php
require "../DBDA.class.php";
$db = new DBDA();
$uid = $_POST["uid"];
$js = $_POST["js"];
//清空原有角色
$sql = "delete from userinjuese where userid='{$uid}'";
$db->query($sql);
//添加选中的角色
$ajs = explode(",",$js);
foreach($ajs as $v)
{
$sql = "insert into userinjuese values('','{$uid}','{$v}')";
$db->query($sql);
}
二.完成管理员页面后，下面就是登录页面
1.登录基本页面 login.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <h1>登录界面</h1> <form action="dlchuli.php" method="post"> <div>用户名：<input type="text" name="uid" /></div> <div>密码： <input type="password" name="pwd" /></div> <input type="submit" value="登录" /> </form> </body> </html>
2.登录处理的页面 dlchuli.php
<?php
session_start();
require "../DBDA.class.php";
$db = new DBDA();
$uid = $_POST["uid"];
$pwd = $_POST["pwd"];
$sql = "select pwd from users where uid='{$uid}'";
$mm = $db->strquery($sql);
if($mm==$pwd && !empty($pwd))
{
$_SESSION["uid"] = $uid;
header("location:main.php");
}
else
{
echo"输入的用户名或密码有误！";
}
3.主页面 main.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.list{ 100px;
height:35px;
border:1px solid #36F;
margin:0px 2px 0px 2px;
text-align:center;
vertical-align:middle;
line-height:35px;}
</style>
</head>
<body>
<h1>主页面</h1>
<?php
session_start();
$uid ="";
if(empty($_SESSION["uid"]))//判断session是否为空
{
header("location:login.php");//空的话就返回登录页面
exit;
}
$uid = $_SESSION["uid"];
require"../DBDA.class.php";
$db = new DBDA();
$sql = "select * from rules where code in(select distinct ruleid from juesewithrules where jueseid in(select jueseid from userinjuese where userid='{$uid}'))";
$arr = $db->query($sql,1);
foreach($arr as $v)
{
echo "<div code='{$v[0]}' class='list'>{$v[1]}</div>";
}
?>
</body>
</html>
选择登陆张三显示他的权限，效果如下：
