PHP 7.2警告：“当会话处于活动状态时，不能更改会话名称”。 [英] PHP 7.2 Warning: "Cannot change session name when session is active"
问题描述
由于我们服务器上的PHP已从7.0升级到7.2。如果完成了新部署，我将收到以下警告（导致错误）。原因可能是，旧会话在部署后会失效。
Since PHP on our server was upgraded to 7.2 from 7.0. I am getting the following warning (which leads to error) if a new deployment is done. The reason is probably, that old sessions get invalid after deployment.
警告：session_name（）：在会话时无法更改会话名称在第137行上的
有效 /var/www/html/model/login/lib/Session.class.php
Warning: session_name(): Cannot change session name when session is active in /var/www/html/model/login/lib/Session.class.php on line 137
警告：session_set_cookie_params （）：当会话在第138行的
/var/www/html/model/login/lib/Session.class.php中处于活动状态时，无法更改会话cookie
参数
Warning: session_set_cookie_params(): Cannot change session cookie parameters when session is active in /var/www/html/model/login/lib/Session.class.php on line 138
警告：无法修改标头信息-
已发送的标头（输出从
开始/ var / www / html / model / login / lib /在第142行的
/var/www/html/model/login/lib/Session.class.php中的Session.class.php：137）
Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/model/login/lib/Session.class.php:137) in /var/www/html/model/login/lib/Session.class.php on line 142
在会话上下文和特定上下文中，PHP 7.2似乎变得更加严格。服务器似乎识别出无效的会话，并尝试销毁那些无效的会话。这是Session类的一部分：
It seems like PHP 7.2 got more strict in the context of session sin a certain context. The server seems to recognize the invalid sessions and tries to destroy those. This is part of the Session class:
/**
* Secure instant destruction of session. Must be called after session_start !
*/
public static function destroyAbsolute() {
self::checkInit(); // unimportant
session_name(self::$name); // this is line 137
session_set_cookie_params(0, COOKIEPATH, null, self::$force_ssl_cookie, true);
if(session_id()) {
if (isset($_COOKIE[session_name()])) {
setcookie(session_name(), "", time() - 42000, COOKIEPATH);
}
unset($_COOKIE[session_name()]);
session_destroy();
}
}
关于会话的PHP发生了什么变化？
What has changed in PHP regarding sessions?
如果另一个会话处于活动状态，为什么不允许设置会话名称（根据具有session_name的文档，我可以更改会话并启动多个会话）？
Why is it not allowed to set a session name if another session is active (according to the docs with session_name I could change sessions and start multiple sessions)?
我该如何适当地销毁正在运行的会话？
And how may I destroy the running session appropriately?
我还需要做进一步的研究在GitHub上找到了以下讨论（ https://github.com/Icinga/icingaweb2/issues/3185 ）。 他们确认此错误是PHP 7.2引入的。不幸的是，也没有答案：-/
Doing further research I also have found the following discussion on GitHub (https://github.com/Icinga/icingaweb2/issues/3185). They confirm that this error was introduced with PHP 7.2. Unfortunatly there is also no answer :-/
推荐答案
我在php.net上做了一个错误报告，他们解释说这是不是错误。 是的，现在在PHP 7.2中会生成警告。但这从未按预期进行，只是默默地失败了。
I have done a bug report at php.net and they explained that this is not a bug. Yes in PHP 7.2 a warning is generated now. However this never worked as intended, it just failed silently.
要创建多个会话，需要使用 session_id（）。看看这个相关的问题： PHP如何创建多个会话？
For creating multiple sessions it is required to use session_id(). Have a look at this related question: PHP How can I create multiple sessions?
session_name（）以及 session_set_cookie_params（）总是无意义。
对于原始答案，请在此处查看： https://bugs.php.net/bug.php?id=75650&thanks=2
For the original answer have a look here: https://bugs.php.net/bug.php?id=75650&thanks=2
这篇关于PHP 7.2警告：“当会话处于活动状态时，不能更改会话名称”。的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
