PHP页面访问密码

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<?php
$password = "666 // 这里是密码

if (isset ( $_COOKIE ["isview"] ) and $_COOKIE ["isview"] == $password) {
$isview = true;
} else {
if (isset ( $_POST ["pwd"] )) {
if ($_POST ["pwd"] == $password) {
setcookie ( "isview", $_POST ["pwd"], time () + 3600 * 3 );
$isview = true;
} else {
$p = (empty ( $_POST ["pwd"] )) ? "需要密码才能查看,请输入密码。" : "密码不正确,请重新输入。";
}
} else {
$isview = false;
$p = "请输入密码查看。";
}
}
if ($isview) {
?>

//这里输入您要加密页面的代码,支持html/php
<?php }else{ ?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
</head>
<body>
<div class="passport">
<div style="padding-top: 20px;">
<form action="" method="post" style="margin: 0px;">
输入查看密码
<input type="password" name="pwd" />
<input type="submit"
value="查看" />
</form>
<?php echo $p; ?>
</div>
</div>
<?php} ?>
</body>
</html>
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