Php/docs/sessionhandlerinterface.gc

• PHP Manual
• SessionHandlerInterface
• Cleanup old sessions

SessionHandlerInterface::gc

(PHP 5 >= 5.4.0, PHP 7)

SessionHandlerInterface::gc — Cleanup old sessions

说明

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.

参数

max_lifetime

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

返回值

Returns the number of deleted sessions on success, 或者在失败时返回 false. Note this value is returned internally to PHP for processing.

更新日志

版本	说明
7.1.0	Prior to this version, the function returned true on success.