日期:2014-05-17  浏览次数:20703 次

PHP 实现登录记住密码

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>
<?php
session_start();
function p($arr){
	echo "<pre>";
	print_r($arr);
	echo "</pre>";
}
p($_SESSION);
p($_COOKIE);
?>

登录页面

<?php
function 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");

用户信息页面

<?php
session_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>";
}

?>
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<a href="updateuserinfo.php">修改信息</a>
<a href="logout.php">推出</a>

推出页面
<?php
session_start();
unset($_SESSION['username']);
unset($_SESSION['password']);
setcookie('username','',0);
setcookie('password','',0);

header("location:form.php");
?>

修改用户信息页面

<?php
session_start();

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