(PHP 5 >= 5.4.0, PHP 7)
SessionHandlerInterface::gc — Cleanup old sessions
$maxlifetime
)Cleans up expired sessions. Called by session_start(), based on session.gc_divisor, session.gc_probability and session.gc_maxlifetime settings.
maxlifetime
Sessions that have not updated for the last maxlifetime seconds will be removed.
The return value (usually TRUE on success, FALSE on failure). Note this value is returned internally to PHP for processing.