(PHP 5 >= 5.4.0, PHP 7)
SessionHandlerInterface::gc — Cleanup old sessions
abstract public SessionHandlerInterface::gc ( int $max_lifetime ) : int|bool
Cleans up expired sessions. Called by session_start(), based on session.gc_divisor, session.gc_probability and session.gc_maxlifetime settings.
max_lifetime
Sessions that have not updated for the last max_lifetime seconds will be removed.
Returns the number of deleted sessions on success, or false on failure. Note this value is returned internally to PHP for processing.
| Version | Description |
|---|---|
| 7.1.0 | Prior to this version, the function returned true on success. |
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https://www.php.net/manual/en/sessionhandlerinterface.gc.php