Created
May 31, 2013 15:31
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session.gc_probability = 1 | |
session.gc_divisor = 100 | |
session.gc_maxlifetime = 1440 | |
这三个配置组合构建服务端session的垃圾回收机制 | |
session.gc_probability与session.gc_divisor构成执行session清理的概率,理论上的解释为服务端定期有一定的概率调用gc函数来对session进行清理,清理的概率为: | |
gc_probability/gc_divisor 比如:1/100 表示每一个新会话初始化时(session_start),有1%的概率会启动垃圾回收程序,清理的标准为session.gc_maxlifetime定义的时间。 | |
我写了一篇关于结合http分析php session 本质的文章,有兴趣的话可以看下 - http://www.360weboy.com/php/session-c... | |
我接下来写一篇关于php session内部执行的整个的详细步骤的文章在博客中 |
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