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thinkphp会员登录问题
<?php<br />session_start();<br />header('Content-Type:text/html; charset=utf-8');<br />class AdminAction extends Action{<br /> public function index(){<br /> if(isset($_POST['username'])){<br /> if(isset($_POST['username'])&&isset($_POST['password'])){<br /> $db=M();<br /> $select=$db->query("select * from developers where username=".$POST['username']." and password=".$_POST['password']."");<br /> if($select){<br /> $_SESSION['admin']=$_POST['username'];<br /> $this->redirect('Index/index','',2,'用户'.$_POST['username'].'登录成功!');<br /> }else{<br /> $this->redirect('Index/index','',2,'用户名或者密码不正确');<br /> }<br /> }else{<br /> $this->redirect('Index/index','',2,'用户名或密码不能为空!');<br /> }<br /> }<br /> $this->display();<br /> }<br /> <br /> <br /><br /> }<br /> ?>