Untitled

function onCampDayUp() {
        try {
            $dbquery = $this->pdo->prepare("UPDATE jumpers j JOIN oncamp o ON o.id_jumper = j.id_jumper SET j.oncamp = 0 WHERE o.day = 7");
            $dbquery->execute();
            $dbquery = $this->pdo->prepare("DELETE FROM oncamp WHERE day = 7");
            $dbquery->execute();
            $dbquery = $this->pdo->prepare("UPDATE oncamp SET day = day + 1");
            $dbquery->execute();

        } catch (PDOException $e) {
            error_log($e->getMessage());
        }
    }