How to set session validity period in php

How to set the session validity period in php: You can set the session life cycle by setting session.gc_maxlifetime. session.gc_maxlifetime refers to setting the maximum expiration time of the session.

In PHP, the life cycle of the Session is mainly set by setting session.gc_maxlifetime.

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session.gc_maxlifetime refers to setting the maximum expiration time of the session, which means that PHP will perform its garbage collection according to a certain probability Mechanism, this mechanism refers to judging whether the current time minus the last modification time of the session file is greater than session.gc_maxlifetime, and if so, delete the session file.

Code example:

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An encapsulated function is provided below for reference only.

The code is as follows:

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