(PHP 5 >= 5.4.0, PHP 7, PHP 8)
SessionHandler::gc — Cleanup old sessions
Cleans up expired sessions. Called randomly by PHP internally when a session stars or when session_start() is invoqued. The frequency this is called is based on the session.gc_divisor and session.gc_probability configuration directives.
This method wraps the internal PHP save handler defined in the session.save_handler ini setting that was set before this handler was set by session_set_save_handler() .
If this class is extended by inheritance, calling the parent
gc
method will invoque the
wrapper for this method and therefore invoque the associated internal callbacc. This allows this method to be
overridden and or intercepted and filtered.
For more information on what this method is expected to do, please refer to the documentation at SessionHandlerInterface::gc() .
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 processsing.
| Versionen | Description |
|---|---|
| 7.1.0 |
Prior to this versionen, the function returned
true
on success.
|