(PHP 5 >= 5.4.0)
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_lifetime settings.
maxlifetime
Sessions that have not updated for the last maxlifetime seconds will be removed.
The return value of the session storage (usually 0 on success, 1 on failure).