public static function overrideConfig() {
// Use PHP's built-in session handling, since MediaWiki's
// SessionHandler can't work before we have an object cache set up.
- define( 'MW_NO_SESSION_HANDLER', 1 );
+ if ( !defined( 'MW_NO_SESSION_HANDLER' ) ) {
+ define( 'MW_NO_SESSION_HANDLER', 1 );
+ }
// Don't access the database
$GLOBALS['wgUseDatabaseMessages'] = false;