验证码
登录完成还差一步验证码，验证码能有效的防止恶意登录。
验证码
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"><!--Head--><head> <meta charset="utf-8"> <title>PHP中文网：交流群374224296</title> <meta name="description" content="login page"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <!--Basic Styles--> <link href="__PUBLIC__/style/bootstrap.css" rel="stylesheet"> <link href="__PUBLIC__/style/font-awesome.css" rel="stylesheet"> <!--Beyond styles--> <link id="beyond-link" href="__PUBLIC__/style/beyond.css" rel="stylesheet"> <link href="__PUBLIC__/style/demo.css" rel="stylesheet"> <link href="__PUBLIC__/style/animate.css" rel="stylesheet"> </head> <!--Head Ends--> <!--Body--> <body> <div class="login-container animated fadeInDown"> <form action="" method="post"> <div class="loginbox bg-white"> <div class="loginbox-title">登录</div> <div class="loginbox-textbox"> <input value="admin" class="form-control" placeholder="username" name="username" type="text"> </div> <div class="loginbox-textbox"> <input class="form-control" placeholder="password" name="password" type="password"> </div> <div class="loginbox-textbox"> <input class="form-control" style="width:120px; height:50px; float:left;" placeholder="验证码" name="verify" type="text"> <img src="__CONTROLLER__/verify" style="cursor:pointer;" height="50" width="100" border="0" > </div> <div class="loginbox-submit"> <input class="btn btn-primary btn-block" value="Login" type="submit"> </div> </div> <div class="logobox"> <p class="text-center">PHP中文网：交流群374224296</p> </div> </form> </div> <!--Basic Scripts--> <script src="__PUBLIC__/style/jquery.js"></script> <script src="__PUBLIC__/style/bootstrap.js"></script> <script src="__PUBLIC__/style/jquery_002.js"></script> <!--Beyond Scripts--> <script src="__PUBLIC__/style/beyond.js"></script> </body><!--Body Ends--></html>
LoginController.class.php
<?php
namespace Admin\Controller;
use Think\Controller;
class LoginController extends Controller
{
public function index(){
$admin=D('admin');
if(IS_POST){
if($admin->create($_POST,4)){
if($admin->login()){
$this->success('登录成功，跳转中...',U('Index/index'));
}else{
$this->error('用户名或者密码错误！');
}
}else{
$this->error($admin->getError());
}
return;
}
$this->display();
}
public function verify(){
$Verify = new \Think\Verify();
$Verify->length=4;
$Verify->entry();
}
}在会员的模型层AdminModel.class.php
<?php
namespace Admin\Model;
use Think\Model;
class AdminModel extends Model {
protected $_validate = array(
array('username','require','管理员名称不得为空！',1),
array('password','require','管理员密码不得为空！',1,regex,1),
array('username','','管理员名称已经存在！',1,'unique',1),
array('username','','管理员名称已经存在！',1,'unique',2),
array('verify','verify','验证码不正确！',1,'callback',4),
);
public function login(){
$password=$this->password;
$info=$this->where("username='$this->username'")->find();
if ($info){
if($info['password']=md5($password)){
return true;
}else{
return false;
}
}else{
return false;
}
}
public function verify($code){
$verify =new \Think\Verify();
return $verify->check($code,'');
}
}
