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怎么将PHP中SESSION部分数据保存

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Release： 2016-06-13 13:24:08
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如何将PHP中SESSION部分数据保存

上次别人给了我一个单子，要将PHP中SESSION部分数据保存，但是问题是总有个过期不能处理，这里介绍一下session的过期设置：


在PHP中,设置php.ini,找到session.gc_maxlifetime = 1440 #(PHP5默认24分钟)

这里你可以随便设置一下过期时间.但是有人说设置以后,好象不起作用!

其实不是不起作用,而是因为系统默认:

session.gc_probability = 1

session.gc_divisor = 1000

garbage collection 有个概率的，1/1000就是session 1000次才有一次被回收。

只要你的访问量大了,那就能达到回收的效果.

要不然你也可以设置一下session.gc_divisor 的值,

比如:session.gc_divisor = 1,这样就能明显的看到SESSION过期的效果了.（龙铭洪）

Related labels：
gc php session
source：php.cn
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