php 我的会议将持续多久？
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How long will my session last?
提问by Keith Donegan
Can someone please tell me how long my session will last from the data below? - I'm not sure which one tells me
有人可以通过下面的数据告诉我我的会话将持续多长时间吗？- 我不确定是哪一位告诉我的
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
回答by Gumbo
In general you can say session.gc_maxlifetimespecifies the maximum lifetime since the last change of your session data (notthe last time session_startwas called!). But PHP's session handling is a little bit more complicated.
一般来说，您可以说session.gc_maxlifetime指定自上次更改会话数据以来的最大生命周期（不是最后一次session_start被调用！）。但是 PHP 的会话处理稍微复杂一些。
Because the session data is removed by a garbage collector that is only called by session_startwith a probability of session.gc_probabilitydevided by session.gc_divisor. The default values are 1 and 100, so the garbage collector is only started in only 1% of all session_startcalls. That means even if the the session is already timed out in theory (the session data had been changed more than session.gc_maxlifetimeseconds ago), the session data can be used longer than that.
因为会话数据被垃圾收集器删除，垃圾收集器仅以session.gc_probability由session.gc_divisorsession_start划分的概率调用。默认值为 1 和 100，因此垃圾收集器仅在所有调用的1% 中启动。这意味着即使会话理论上已经超时（会话数据已更改超过session.gc_maxlifetime秒前），会话数据可以使用更长的时间。session_start
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.
因此，我建议您实现自己的会话超时机制。请参阅我对如何在 30 分钟后使 PHP 会话过期？更多细节。
回答by Luká? Lalinsky
This is the one. The session will last for 1440 seconds (24 minutes).
这是一个。会话将持续 1440 秒（24 分钟）。
session.gc_maxlifetime 1440 1440
回答by ?ystein Riiser Gundersen
If session.cookie_lifetimeis 0, the session cookie lives until the browser is quit.
如果session.cookie_lifetime是 0，会话 cookie 会一直存在，直到浏览器退出。
EDIT: Others have mentioned the session.gc_maxlifetimesetting. When session garbage collection occurs, the garbage collector will delete any session data that has not been accessed in longer than session.gc_maxlifetimeseconds. To set the time-to-live for the session cookie, call session_set_cookie_params()or define the session.cookie_lifetimePHP setting. If this setting is greater than session.gc_maxlifetime, you should increase session.gc_maxlifetimeto a value greater than or equal to the cookie lifetime to ensure that your sessions won't expire.
编辑：其他人提到了session.gc_maxlifetime设置。当会话垃圾收集发生时，垃圾收集器将删除任何超过session.gc_maxlifetime秒没有访问过的会话数据。要设置会话 cookie 的生存时间，请调用session_set_cookie_params()或定义session.cookie_lifetimePHP 设置。如果此设置大于 session.gc_maxlifetime，您应该增加session.gc_maxlifetime一个大于或等于 cookie 生存期的值，以确保您的会话不会过期。
回答by svens
You're searching for gc_maxlifetime, see http://php.net/manual/en/session.configuration.php#ini.session.gc-maxlifetimefor a description.
您正在搜索 gc_maxlifetime，请参阅http://php.net/manual/en/session.configuration.php#ini.session.gc-maxlifetime以获取说明。
Your session will last 1440 seconds which is 24 minutes (default).
您的会话将持续 1440 秒，即 24 分钟（默认）。
