SessionHandlerInterface
PHP Manual

SessionHandlerInterface::gc

(PHP 5 >= 5.4.0)

SessionHandlerInterface::gcCleanup old sessions

说明

abstract public bool SessionHandlerInterface::gc ( string $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

The return value of the session storage (usually 0 on success, 1 on failure).


SessionHandlerInterface
PHP Manual