PHP 会话变量未在页面之间保存
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PHP session variables not saving between pages
提问by Sean McCully
I know this might be a duplicate question, but I can't seem to find an answer to my specific problem.
我知道这可能是一个重复的问题，但我似乎无法找到我的具体问题的答案。
I have 3 PHP files. signin.php gets users data and passes it to signin_auth.php.
我有 3 个 PHP 文件。signin.php 获取用户数据并将其传递给 signin_auth.php。
signin.php then redirects to mytoolkit.php after successful sign in.
signin.php 然后在成功登录后重定向到 mytoolkit.php。
signin_auth.php uses the following code at the very end of the PHP script:
signin_auth.php 在 PHP 脚本的最后使用以下代码：
<?
session_start();
$_SESSION['sessionID'] = $id;
$_SESSION['time'] = time();
header ("Location: mytoolkit.php");
exit;
?>
Then, the users is redirected to mytoolkit.php, which uses this code:
然后，用户被重定向到 mytoolkit.php，它使用以下代码：
<?
session_start();
if (!isset($_SESSION['sessionID'])) {
header('Location: signin.php?message=4');
exit;
}
$inactive = 5400;
$session_life = time() - $_SESSION['time'];
if ($session_life > $inactive) {
session_destroy();
header("Location: signin.php?message=5");
exit;
}
?>
The session variables aren't storing and mytoolkit.php keeps redirecting me to signin.php?message=4
会话变量未存储并且 mytoolkit.php 不断将我重定向到 signin.php?message=4
Probably a stupid mistake. I've just been looking at it too long.
可能是一个愚蠢的错误。我只是看着它太久了。
UPDATE --
更新 -
So I have a couple of servers. Both on iPage. I moved the entire folder over to a differnent server (abc.com/toolkit is now copied to xyz.com/toolkit) The app runs perfectly on xyz.com... it the first server that's giving me probelms.
所以我有几台服务器。两者都在 iPage 上。我将整个文件夹移动到不同的服务器（abc.com/toolkit 现在被复制到 xyz.com/toolkit） 该应用程序在 xyz.com 上完美运行......它是第一个给我问题的服务器。
There both run on the same hosting company. I'm not sure what to do.
两者都在同一托管公司上运行。我不知道该怎么做。
回答by Sean McCully
I finally figured it out... It was an issues with my php.inifile on iPage's server. For some reason, they had it set to
我终于想通了...这是我php.ini在 iPage 服务器上的文件的问题。出于某种原因，他们将其设置为
session.save_path = "/var/php_sessions"
Where it should be my document root. That's not the first time they've messed stuff up.
它应该是我的文档根目录。这不是他们第一次搞砸了。
回答by Amir
if you did not destroy session with session_destroy();before if (!isset($_SESSION['sessionID'])) {statement, then a reason could be $idhas null value.
如果您没有使用session_destroy();beforeif (!isset($_SESSION['sessionID'])) {语句销毁会话，则原因可能为$id空值。
回答by blokeish
I was running httpd as another user (not apache). On checking /etc/php.ini I found that "session directory must be owned by process owner". So in /etc/httpd/conf.d/php.conf I changed the following:
我以另一个用户（不是 apache）的身份运行 httpd。在检查 /etc/php.ini 时，我发现“会话目录必须由进程所有者拥有”。所以在 /etc/httpd/conf.d/php.conf 我改变了以下内容：
php_value session.save_path "/var/lib/php/session"
php_value soap.wsdl_cache_dir "/var/lib/php/wsdlcache"
to
到
php_value session.save_path "/home/[httpduser]/php/session"
php_value soap.wsdl_cache_dir "/home/[httpduser]/php/wsdlcache"
and reloaded httpd.
并重新加载httpd。
Not sure if it was a better idea to change the owner of /var/lib/php to [httpduser]
不确定将 /var/lib/php 的所有者更改为 [httpduser] 是否更好
回答by CodeBird
I think this is your issue
我认为这是你的问题
$inactive = 5400;
$session_life = time() - $_SESSION['time'];
if ($session_life > $inactive) {
session_destroy();
header("Location: signin.php?message=5");
exit;
}
回答by Hugo Delsing
If you use a header('location: example.com')in your script it is sending a 302 redirect to your browser. Now this is none permanent, but some browser still cache this result. Just google it
如果您header('location: example.com')在脚本中使用 a ，它会向您的浏览器发送 302 重定向。现在这不是永久的，但一些浏览器仍然缓存这个结果。只需谷歌一下
So it could very well be that your browser is redirecting your request before it even accesses your code. Try changing signin_auth.phpto header ("Location: mytoolkit.php?t=".time());and then call the page with some random parameter attached to prevent the first page from caching. EG: /signin_auth.php?t=random
因此，很可能您的浏览器在访问您的代码之前就重定向了您的请求。尝试更改signin_auth.php为header ("Location: mytoolkit.php?t=".time());然后调用带有一些随机参数的页面，以防止第一页缓存。例如：/signin_auth.php?t=random
