24分钟,至于说180分钟的,可能某个5.x的版本默认是吧 不知道你是怎么试的session.gc_maxlifetime = 1440; NOTE: If you are using the subdirectory option for storing session files ; (see session.save_path above), then garbage collection does *not* ; happen automatically. You will need to do your own garbage ; collection through a shell script, cron entry, or some other method. ; For example, the following script would is the equivalent of ; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes): ; find /path/to/sessions -cmin +24 | xargs rm
1451 ; Defines the probability that the 'garbage collection' process is started 1452 ; on every session initialization. The probability is calculated by using 1453 ; gc_probability/gc_divisor. Where session.gc_probability is the numerator 1454 ; and gc_divisor is the denominator in the equation. Setting this value to 1 1455 ; when the session.gc_divisor value is 100 will give you approximately a 1% chance 1456 ; the gc will run on any give request. 1457 ; Default Value: 1 1458 ; Development Value: 1 1459 ; Production Value: 1 1460 ; http://php.net/session.gc-probability 1461 session.gc_probability = 1 1462 1463 ; Defines the probability that the 'garbage collection' process is started on every 1464 ; session initialization. The probability is calculated by using the following equation: 1465 ; gc_probability/gc_divisor. Where session.gc_probability is the numerator and 1466 ; session.gc_divisor is the denominator in the equation. Setting this value to 1 1467 ; when the session.gc_divisor value is 100 will give you approximately a 1% chance 1468 ; the gc will run on any give request. Increasing this value to 1000 will give you 1469 ; a 0.1% chance the gc will run on any give request. For high volume production servers, 1470 ; this is a more efficient approach. 1471 ; Default Value: 100 1472 ; Development Value: 1000 1473 ; Production Value: 1000 1474 ; http://php.net/session.gc-divisor 1475 session.gc_divisor = 1000 1476 1477 ; After this number of seconds, stored data will be seen as 'garbage' and 1478 ; cleaned up by the garbage collection process. 1479 ; http://php.net/session.gc-maxlifetime 1480 session.gc_maxlifetime = 1440共同作用。
不知道你是怎么试的session.gc_maxlifetime = 1440; NOTE: If you are using the subdirectory option for storing session files
; (see session.save_path above), then garbage collection does *not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other method.
; For example, the following script would is the equivalent of
; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
; find /path/to/sessions -cmin +24 | xargs rm
1452 ; on every session initialization. The probability is calculated by using
1453 ; gc_probability/gc_divisor. Where session.gc_probability is the numerator
1454 ; and gc_divisor is the denominator in the equation. Setting this value to 1
1455 ; when the session.gc_divisor value is 100 will give you approximately a 1% chance
1456 ; the gc will run on any give request.
1457 ; Default Value: 1
1458 ; Development Value: 1
1459 ; Production Value: 1
1460 ; http://php.net/session.gc-probability
1461 session.gc_probability = 1
1462
1463 ; Defines the probability that the 'garbage collection' process is started on every
1464 ; session initialization. The probability is calculated by using the following equation:
1465 ; gc_probability/gc_divisor. Where session.gc_probability is the numerator and
1466 ; session.gc_divisor is the denominator in the equation. Setting this value to 1
1467 ; when the session.gc_divisor value is 100 will give you approximately a 1% chance
1468 ; the gc will run on any give request. Increasing this value to 1000 will give you
1469 ; a 0.1% chance the gc will run on any give request. For high volume production servers,
1470 ; this is a more efficient approach.
1471 ; Default Value: 100
1472 ; Development Value: 1000
1473 ; Production Value: 1000
1474 ; http://php.net/session.gc-divisor
1475 session.gc_divisor = 1000
1476
1477 ; After this number of seconds, stored data will be seen as 'garbage' and
1478 ; cleaned up by the garbage collection process.
1479 ; http://php.net/session.gc-maxlifetime
1480 session.gc_maxlifetime = 1440共同作用。
session.gc_probability = 1
session.gc_divisor = 1000
session.gc_maxlifetime = 1440表示特定 sessionid 临时文件将在 24 分钟后有千分之一的可能被删除，运气不好的话可能要在 24000 分钟后才被删除
sessionid 临时文件被删除了，才表示该 sessionid 真正的失效了
++想要百分百触发，就让pro和div都是1，另外可以让session很长很长，设置maxlifetime即可。 只有服务端session文件长没用，要保持客户端cookie的生命期长度一致。