SessionHandlerInterface
PHP Manual

SessionHandlerInterface::gc

(PHP 5 >= 5.4.0, PHP 7)

SessionHandlerInterface::gcCleanup old sessions

说明

abstract public bool SessionHandlerInterface::gc ( int $maxlifetime )

Cleans up expired sessions. Called by session_start(), based on session.gc_divisor, session.gc_probability and session.gc_lifetime settings.

参数

maxlifetime

Sessions that have not updated for the last maxlifetime seconds will be removed.

返回值

会话存储的返回值(通常成功返回 0,失败返回 1)。


SessionHandlerInterface
PHP Manual