Filtrage des user null (pb ici) durant l'export

        $records = [];

        foreach ($users as $user) {

            if ($user) {

                $item = [];

                $item[] = $user->getUsername();

                $item[] = $user->getDisplayName();

                $item[] = $user->getEmail();

                $records[] = $item;

            }

        }

        $date = (new DateTime())->format('Ymd-His');

        $filename="export_utilisateur_".str_replace(' ','-',$role->getRoleId())."_".$date.".csv";