我的课程将持续多长时间? [英] How long will my session last?

问题描述

有人可以从下面的数据中告诉我我的会话将持续多长时间吗? -我不确定哪个告诉我

Can someone please tell me how long my session will last from the data below? - I'm not sure which one tells me

session.auto_start  Off Off
session.bug_compat_42   Off Off
session.bug_compat_warn On  On
session.cache_expire    180 180
session.cache_limiter   nocache nocache
session.cookie_domain   no value    no value
session.cookie_httponly Off Off
session.cookie_lifetime 0   0
session.cookie_path /   /
session.cookie_secure   Off Off
session.entropy_file    no value    no value
session.entropy_length  0   0
session.gc_divisor  1000    1000
session.gc_maxlifetime  1440    1440
session.gc_probability  1   1
session.hash_bits_per_character 5   5
session.hash_function   0   0
session.name    PHPSESSID   PHPSESSID
session.referer_check   no value    no value
session.save_handler    files   files
session.save_path   /var/lib/php/session    /var/lib/php/session
session.serialize_handler   php php
session.use_cookies On  On
session.use_only_cookies    Off Off
session.use_trans_sid   0   0

推荐答案

通常，您可以说

In general you can say session.gc_maxlifetime specifies the maximum lifetime since the last change of your session data (not the last time session_start was called!). But PHP’s session handling is a little bit more complicated.

因为会话数据被仅由 session_start 调用的垃圾收集器删除了 session.gc_probability 由 session.gc_divisor 划分.默认值为1和100，因此垃圾收集器仅在所有session_start调用中的1％中启动.这意味着即使会话在理论上已经超时(会话数据的更改时间已超过 session.gc_maxlifetime 秒)，会话数据的使用时间也可以更长.

Because the session data is removed by a garbage collector that is only called by session_start with a probability of session.gc_probability devided by session.gc_divisor. The default values are 1 and 100, so the garbage collector is only started in only 1% of all session_start calls. That means even if the the session is already timed out in theory (the session data had been changed more than session.gc_maxlifetime seconds ago), the session data can be used longer than that.

由于这个事实，我建议您实现自己的会话超时机制.请参阅我对方法的回答我会在30分钟后使PHP会话到期吗? 以获取更多信息.

Because of that fact I recommend you to implement your own session timeout mechanism. See my answer to How do I expire a PHP session after 30 minutes? for more details.

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