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ThinkPHP验证码

模块:Home;

显示:Home /View/Main/prectice  //Home模块->View视图->Main文件夹->prectice

<!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>验证码</title>
<script src="http://www.mamicode.com/bootstrap/dist/js/jquery-1.11.2.min.js"></script>  //引入Jquery
</head>

<body>
  //创建表单 <form action=‘__ACTION__‘ method=‘post‘> <img src=http://www.mamicode.com/‘__CONTROLLER__/yzm‘ id=‘img‘/>"color: #000000"> $(‘#img‘).click(function(){ var a = Math.ceil(Math.random()*100); alert (a); $(this).attr(‘src‘,‘__CONTROLLER__/yzm/a‘+a); }) </script> </body> </html>

 

 

控制器:Home /Controller/MainController.class.php  //Home前台->Controller控制器->MainController.class.php 里的prectice方法

<?php
namespace Home\Controller;
use Think\Controller;
class MainController extends Controller
{
    public function prectice()
  {
      if(empty($_POST))   //用empty()检测传过来的值是否为空
      { 
      
        //如果为空,显示页面
       $this ->show();   
      }
else{ //如果不为空,检查传过来的验证码   
        
$verify = new \Think\Verify();   
        
var_dump($verify ->check($_POST[‘yz‘]));   
      }
    }

  public function yzm()   {   $verify = new \Think\Verify();   $verify ->length = 3;   $verify ->fontSize =30;   $verify ->entry();   } }

 

ThinkPHP验证码