3.1.2 视图实例演示-登录页面

  function do_login(){
		   //获取用户名和密码信息,和数据库中比对
		   // echo 111111111;
		    dump($_POST);
		   // dump($_SESSION);
		   $username=$_POST['username'];
		   $password=$_POST['password'];
           $code=$_POST['code'];
		    if($_SESSION['verify']!==md5($code))
			{
			$this->error('验证码错误');
			}
			/* else
			{$this->show('登录成功');}
			 */
			$m=new Model('user');
			$where['username']=$username;
			
			//$where['password']=$password;
			
			$i=$m->where($where)->count();
			
			
			
			
dump($_POST); 打印出来的内容:

array (size=3)
  'username' => string 'gege' (length=4)
  'password' => string '1234567' (length=7)
  'code' => string '2268' (length=4)
  
  
  登录页面:
  <!-- form 表单 table 表格 td 单元格 tr 行标签 -->

<!doctype html>
<html lang="en">
 <head>

  <meta name="Generator" content="EditPlus?">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
 
 <title>Document</title>

 
	
  <link rel='stylesheet' type='text/css' href='__PUBLIC__/Css/login.css'/>
   <link rel='stylesheet' type='text/css' href='__PUBLIC__/Css/basic.css'/>
   <script src="__PUBLIC__/Js/login.js"></script>
 </head>
 
 <body>
  <!doctype html>
<html lang="en">
 <head>

  <meta name="Generator" content="EditPlus?">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>Document</title>
 </head>
 <body>
 <center>
 <h1>中均运维管理平台</h1>
   <!--图片标签-->
<img class="img_bk" src="__PUBLIC__/Images/scan.jpg"/>
 </center>
 <!--表单提交-->
 <form action='__URL__/do_login' method='post' name="myForm">

<center>
<table cellspacing="0" cellpadding="0">

<tr>

<td class="td1">用户名:</td>
<td><input type="text" name="username"/></td>
<td class="td3"></td>
<tr/>

<tr>
<td class="td1">密码:</td>
<td><input type="password" name="password"/></td>
<td class="td3"></td>
<tr/>


<tr>
	<td class="td1">验证码:</td>
	<td>   <input type='text' name='code' /></td>
	<td class="td3"><img src="__APP__/Public/code" onclick='this.src=this.src+"?"+Math.random()'/></td>
</tr>

<center>
<tr>
	<td class="td1"></td>
	
	<td>
	<!-- onclick 一个事件  login()方法来自__PUBLIC__/Js/login.js-->
	<img src="__PUBLIC__/Images/login.jpg" onclick="login()"/>
	<!--img src="__PUBLIC__/Images/login.jpg" />-->
	</td>
	<td class="td3"></td>
</tr>
<center/>
<center/>

 </form>

 </body>
</html>

 </body>
</html>
  

原文地址:https://www.cnblogs.com/zhaoyangjian724/p/6199522.html