登入界面
<?php header('Content-type:text/html;charset=utf-8'); if(isset($_COOKIE['username']) && $_COOKIE['username']==='zeng'){ exit('您已经登入了，请不要重新登入'); } if(isset($_POST['submit'])){ if(isset($_POST['username']) && isset($_POST['password']) && $_POST['username']=='zengguanling' && $_POST['password']=='123456' ){ if(setcookie('username',$_POST['username'], time()+3600)){ header('location:skip.php?url=index.php&info=登入成功！3秒后跳转到首面'); } else { echo 'cookies设置失败'; } } else { header('location:skip.php?url=login.php&info=对不起，用户名活密码填写错误！3秒后跳转到登入页面'); } } ?> <!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <title>请登入</title> </head> <body> <form method="post" action=""> 姓名：<input type="text" name="username" /> 密码：<input type="password" name="password"/> <input type="submit" name="submit" value="登入"/> </form> </body> </html>
跳转处理页面skip.php
<?php if(!isset($_GET['url']) || !isset($_GET['info'])){ exit(); } ?> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="refresh" content="3,URL=<?php echo $_GET['url'] ?>"/> <title>正在跳转中...</title> </head> <body> <div><?php echo $_GET['info'] ?></div> </body> </html>
登入首页index.php
<?php header('Content-type:text/html;charset=utf-8'); if(isset($_COOKIE['username']) && $_COOKIE['username']==='zeng'){ echo "您好！{$_COOKIE['username']},欢迎回来！"; echo "<a href='logout.php'>注销</a>"; } else { echo "<a href='login.php'>请登入</a>"; } ?>
注销处理界面logout.php
<?php header('Content-type:text/html;charset=utf-8'); if(isset($_COOKIE['username']) && $_COOKIE['username']==='zeng'){ if(setcookie('username',$_POST['username'],time()-3600)){ header('location:skip.php?url=index.php&info=注销成功，正在跳转！'); }else{ header('location:skip.php?url=index.php&info=注销失败，请稍后重试！'); } } ?>