PHP 兑现登录记住密码

form页面

<form action="login.php" method="post">用户名<input type="text" name="username"><br>密码<input type="text" name="password"><br>记住密码<input type="checkbox" name="jizhu" value="1"><br><input type="submit"></form><a href="userinfo.php">用户信息</a><?phpsession_start();function p($arr){	echo "<pre>";	print_r($arr);	echo "</pre>";}p($_SESSION);p($_COOKIE);?>

<?phpfunction p($arr){	echo "<pre>";	print_r($arr);	echo "</pre>";}session_start();//p($_POST);$_SESSION['username'] = $_POST['username'];$_SESSION['password'] = $_POST['password'];if($_POST['jizhu']){ 	setcookie('username',$_POST['username'],time()+60);	setcookie('password',$_POST['password'],time()+60);	}header("location:form.php");

<?phpsession_start();echo "先关闭浏览器，在访问form.php 试试，然后 点推出在关闭浏览器试试";p($_SESSION);p($_COOKIE);if(empty($_SESSION['username'])){	if(empty($_COOKIE['username'])){		echo "<a href='form.php'>请先登录</a>";exit;	}else{		$_SESSION['username'] = $_COOKIE['username'];	}}function p($arr){	echo "<pre>";	print_r($arr);	echo "</pre>";}?>2131231231<a href="updateuserinfo.php">修改信息</a><a href="logout.php">推出</a>

<?phpsession_start();unset($_SESSION['username']);unset($_SESSION['password']);setcookie('username','',0);setcookie('password','',0);header("location:form.php");?>

<?phpsession_start();if(empty($_SESSION['username'])){	echo "请先登录";}else{	echo "这里是信息";}?>