php实现简单的权限管理的示例代码

时间：2017-09-05

<!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>登录页面</h1>
<form action="logincl.php" method="post">
<input type="text" name="uid" />
<input type="password" name="pwd" />
<input type="submit" value="登录" />
</form>
</body>
</html>

logincl.php

<?php
session_start();
include("../../fengzhuang/DBDA.class.php");
$db = new DBDA();
$uid = $_POST["uid"];
$pwd = $_POST["pwd"];

$sql="select pwd from qx_user where uid='{$uid}'";
$mm = $db->StrQuery($sql); 

if($mm==$pwd && !empty($pwd))
{
  $_SESSION["uid"]=$uid;
  header("location:main.php");
}

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>
</head>

<body>

<h1>主页面</h1>
<?php
session_start();
include("../../fengzhuang/DBDA.class.php");
$db = new DBDA();

if(empty($_SESSION["uid"]))
{
  header("location:login.php");
  exit;
}
//登录者用户名
$uid = $_SESSION["uid"];


//根据用户名查角色
$sjs = "select jueseid from qx_uij where useid='{$uid}'";
$ajs = $db->Query($sjs);
//定义一个存放功能代号的数组
$arr = array();
//根据角色代号查功能代号
foreach($ajs as $vjs)
{
    $jsid = $vjs[0]; //角色代号
    $sgn = "select ruleid from qx_jwr where jueseid='{$jsid}'";
    $strgn = $db->StrQuery($sgn);
    $agn = explode("|",$strgn);
    
    foreach($agn as $vgn)
    {
      array_push($arr,$vgn);
    }  
}

//去重，显示
$arr = array_unique($arr);
foreach($arr as $v)
{
  $sql = "select * from qx_rules where code='{$v}'";
  $attr = $db->Query($sql);
  
  $attr[0][0]; $attr[0][1];
  
  echo "<div code='{$attr[0][0]}'>{$attr[0][1]}</div>";
}

?>



</body>
</html>

完成的效果，如图:

php实现简单的权限管理的示例代码