public function getWatchlistUser( $params ) {
if ( !is_null( $params['owner'] ) && !is_null( $params['token'] ) ) {
$user = User::newFromName( $params['owner'], false );
- if ( !$user->getId() ) {
+ if ( !($user && $user->getId()) ) {
$this->dieUsage( 'Specified user does not exist', 'bad_wlowner' );
}
$token = $user->getOption( 'watchlisttoken' );