Manual:$wgExtendedLoginCookieExpiration

Cookies: $wgExtendedLoginCookieExpiration
If non-null, duration in seconds to use for Keep me logged in sessions; 0 means until the browser is closed. If null, uses $wgCookieExpiration
Introduced in version:	1.26.0 (Gerrit change 141248; git #16cea35d)
Removed in version:	Still in use
Allowed values:	(integer)
Default value:	180 * 86400 (1.29+, (Gerrit change 321592)) null (1.26-1.28)
Other settings: Alphabetical | By function

Details

MediaWiki version:

≥ 1.26

The purpose of this cookie is to allow having a different (usually longer, but this is not enforced) duration for Keep me logged in login-related cookies. This means you can e.g. set the standard cookie duration (widely used for MW cookies) to 30 days, but set the Keep me logged in duration to a year.

Logins where the "keep me logged in" option is not checked are entirely unaffected by this setting.

Logins where "keep me logged in" is set use a mechanism that can recover from server-side session expiry, so the lifetime of the extended login is unaffected by $wgObjectCacheSessionExpiry.

The values mean:

• null - MW will follow $wgCookieExpiration instead.
• Positive integer - Duration of Keep me logged in sessions, in seconds.
• 0 - Keep me logged in sessions will last until the browser closes.

See also

• Manual:$wgCookieExpiration