SessionHandlerInterface
PHP Manual

SessionHandlerInterface::gc

(PHP 5 >= 5.4.0, PHP 7)

SessionHandlerInterface::gcCleanup old sessions

Description

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

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

Parameters

maxlifetime

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

Return Values

The return value (usually TRUE on success, FALSE on failure). Note this value is returned internally to PHP for processing.


SessionHandlerInterface
PHP Manual