if ( !function_exists( 'session_name' ) ) {
$installerStarted = false;
} else {
- session_name( 'mw_installer_session' );
+ if ( !wfIniGetBool( 'session.auto_start' ) ) {
+ session_name( 'mw_installer_session' );
+ }
$oldReporting = error_reporting( E_ALL & ~E_NOTICE );
$success = session_start();
error_reporting( $oldReporting );