Manual:$wgPHPSessionHandling

Authentication: $wgPHPSessionHandling
Whether to use PHP session handling ($_SESSION and session_*() functions)
Introduced in version:	1.27.0
Removed in version:	still in use
Allowed values:	string
Default value:	enable
Other settings: Alphabetical | By function

Details

Whether to use PHP session handling ($_SESSION and session_*() functions) in SessionManager.

Possible values are:

• enable: Integrate with PHP's session handling as much as possible.
• warn: Integrate but log warnings if anything changes $_SESSION.
• disable: Throw exceptions if PHP session handling is used.

If $wgPHPSessionHandling is set to an invalid value (e.g. any string not listed above), it will automatically be set to warn.

If the constant MW_NO_SESSION is defined, $wgPHPSessionHandling is forced to 'disable'.

If the constant MW_NO_SESSION_HANDLER is defined, $wgPHPSessionHandling is ignored and PHP session handling will function independently of SessionHandler. SessionHandler and PHP's session handling may attempt to override each others' cookies.