Question

我是会话和cookie的新手。就像瓷砖我想要将cookie更改为会话。我只是从链接中获取代码：http://www.pixelconnect.com.au/web-design-blog/php-css-theme-switcher-with-cookies？我尝试过某种方式，但它没有用。

在doctype之前

：

<?php
$theme1 = business;
$theme2 = modern;
$theme3 = web2;
if(isset($_POST['style']))
{setcookie('style', $_POST['style'], time()+(60*60*24*1000));
$style=$_POST['style'];}
elseif(isset($_COOKIE['style']))
{$style=$_COOKIE['style'];}
else
{$style=$theme1;} ?>

头：

<head>
<link href="<?PHP echo $style; ?>.css" rel="stylesheet" type="text/css" />
</head>

体：

<body>
<form action="<?php echo $_SERVER["PHP_SELF"]; ?>" method="post"> 
<select name="style"> <option <?php echo "value='$theme1'";
if($style == $theme1)
{
echo "selected='selected'";
}
?>><?php echo $theme1; ?></option>
<option <?php
echo "value='$theme2'";
if($style == $theme2)
{
echo "selected='selected'";
}
?>><?php echo $theme2; ?></option>
<option <?php
echo "value='$theme3'";
if($style == $theme3)
{
echo "selected='selected'";
}
?>><?php echo $theme3; ?></option>
</select><input type="submit" />
</form>
</body>

我想做点什么：

session_start();
$theme1
$theme2
$theme3
if(isset($_POST['style'])){
$style=$_POST['style'];}
elseif(isset($_SESSION['style']))
{$style=$_SESSION['style'];}
else
{$style=$theme1;} 
?>

头：

<link rel="stylesheet" type="text/css" href="<?php echo $_SESSION['style']?>" />

Answer 1

如果你想用会话破坏cookiee，只需将时间参数留空即

    setcookie('style', $_POST['style']);

就够了......

Answer 2

这真的很简单。从PHP开始，只需致电setcookie

如果您想为PHP会话禁用 Cookie，请致电ini_set("session.use_cookies",0);ini_set("session.use_trans_sid",1);

Answer 3

如果您想使用会话而不是Cookie，请将您的初始代码更改为此（未经测试）：

<?php
session_start();
$theme1 = business;
$theme2 = modern;
$theme3 = web2;
if (isset($_POST['style'])) {
    $_SESSION['style'] = $_POST['style'];
    $style=$_POST['style'];
} else if (isset($_SESSION['style'])) {
    $style=$_SESSION['style'];
} else {
    $style=$theme1;
} ?>

如何将cookie更改为会话？

3 个答案: