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This article mainly introduces the login and logout functions of ThinkPHP in detail. It has certain reference value. Interested friends can refer to it. I hope it can help everyone.
<?php /** * 用户登陆与退出 * 注册成功后,将页面跳转到login登陆页面 * 当数据提交到登陆页面后,必须先执行验证码验证通过再执行登陆操作 */ public function checkyzm($yzm){ $verify=new \Think\Verify();//实例化TP自带的Verify方法 if($verify->check($yzm)){//调用check方法 return true; }else{ echo '验证码错误'; exit(); } } public function login(){ if(!IS_POST){ $this->display(); }else{ //若验证码验证通过 if($this->checkyzm(I('post.yzm'))){ $username=I('post.username'); $user=D( ' user ' )->where(" username='$username' ")->find(); //post过来的password拼接盐md5后密码=数据库的密码,则通过 if(md5( I( ' post.password ' ) . $user[ ' salt ' ])===$user['password']{ cookie('username' , $userp[ ' username ' ]);//写入cookie $this->redirect('/');//跳转到首页 }else{ echo '用户名或密码不对'; } } } } /**V层 * 退出登陆 * 读取cookie $Think.cookie */ //若没有cookie数据 您好欢迎观临 <if condition="$Think.cookie.username eq null"> <a href="{:U('Home/User/login')}" rel="external nofollow" rel="external nofollow" style="color:#50884b">登陆</a> | <a href="{:U('Home/User/reg')}" rel="external nofollow" style="color:#50884b">免费注册</a> | <else /> {$Think.cookie.username}| <<a href="{:U('Home/User/login')}" rel="external nofollow" rel="external nofollow" style="color:#50884b">退出</a> </if> /** * 退出方法 * 1,cookie设为null,删除cookie * 2. 跳转到首页 */ public function logout(){ cookie('username' , null); $this->redirect('/'); } ?>}
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