基于ThinkPHP的开发笔记3-登录功能(转)

1、前台登录用的form 

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<form id='form_login' action="{:U('runLogin')}" method="post">     <div class="row">         <label class="field">登陆名         </label>         <div class="item">             <input id="address" class="basic-input" name="uname" maxlength="70" size="46"/>         </div>     </div>     <div class="row">         <label class="field">密码         </label>         <div class="item">             <input id="pwd" class="basic-input" type="password"  name="pwd" maxlength="70" size="46"/>         </div>     </div>     <div class="row">         <div class="item">             <input type="checkbox" name='auto' class='auto' id='auto' checked='1'/>             <label for="auto">记住我，下次自动登录</label>         </div>     </div>     <hr class="hrline"/>     <div class="row footer">         <div class="item">             <input class="loc-btn" type="button" id="submit_form" value="提交"/>             <input class="lnk-flat" type="button" id="cancel_form" value="取消"/>         </div>     </div> </form>

2、后台验证用户名密码，如果登录成功则写入session和cookie，如果cookie不设置失效时间，默认是关闭全部浏览器时失效 

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public function runLogin(){     if(!$this->isPost()){         halt('页面不存在');     }     $uname=I('post.uname');     $pwd=I('post.pwd','','md5');     $auto=I('post.auto');       $condition = array(         'uname' => $uname,         'pwd'=> $pwd         );     $user=M('User')->where($condition)->find();     if($user){         $uid=$user[id];         if($user[nickname]){             $uname=$user[nickname];         }         session('uid',$user[id]);         session('uname',$uname);         if($auto=='on'){             cookie('uid',$uid,30*24*3600);             cookie('uname',$uname,30*24*3600);         }         header('Content-type:text/html;Charset=UTF-8');         redirect(__APP__);     }else{         header('Content-type:text/html;Charset=UTF-8');         redirect(U('login'),2,'用户名或密码错误,正在跳转回登陆页...');     } }

3、首页控制器判断session或者cookie是否存在 

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<?php // 首页控制器 class IndexAction extends Action {     public function index(){         $data=session('uname');         if($data){             $this->data = $data;         }else if(cookie('uname')){             $this->data = cookie('uname');         }         $this->display();     } }

4、首页页面模板中，使用标签判断用户信息，显示不同的内容 

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<div id='login' class='right'>     <empty name="data">             <a href='{:U('Login/login')}'>登录</a>             <a href='{:U('Login/register')}'>注册</a>         <else/>             <a href='#'>欢迎 {$data}</a>             <a href='{:U('Login/logout')}'>注销</a>     </empty>                  </div>

5、注销登录 

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public function logout(){     session('uid',null);     session('uname',null);     cookie('uid',null);     cookie('uname',null);     redirect(__APP__); }