SQLite3: как вставить несколько строк одним запрсом?

Собственно:

public function orderAdd($order)
{
    foreach ($order as $val) {

    $params = [
        'id' => null,
        'article' => htmlentities($val['article'], ENT_QUOTES),
        'title' => htmlentities($val['title'], ENT_QUOTES),
        'order' => '33',
        'price' => htmlentities($val['price'], ENT_QUOTES),
        'quantity' => htmlentities($val['quantity'], ENT_QUOTES),
    ];

    return $this->db->query('INSERT INTO `orderproducts` VALUES (:id, :article, :title, :order, :quantity, :price)', $params);

    }

}

public function query($sql, $params = [])
{
    $stmt = $this->db->prepare($sql);
    if (!empty($params)) {
        foreach ($params as $key => $val) {
            if (is_int($val)) {
                $type = PDO::PARAM_INT;
            } else {
                $type = PDO::PARAM_STR;
            }
            $stmt->bindValue(':' . $key, $val, $type);
        }
    }
    $stmt->execute();
    return $stmt;
}