I am using a php, balde, laravel system and I want to be able to pass data from another class/component, likely as an array and then dump the array data into the line items of the stripe hosted checkout.

I am new to php and laravel and I have tried several ways, every method I have tried it says undefined…

 public function fetchPartials()
    {
        $this->prepareVars();

        return [
            '#cart-items' => $this->renderPartial('@items'),
            '#cart-coupon' => $this->renderPartial('@coupon_form'),
            '#cart-tip' => $this->renderPartial('@tip_form'),
            '#cart-totals' => $this->renderPartial('@totals'),
            '#cart-buttons' => $this->renderPartial('@buttons'),
            '[data-cart-total]' => currency_format(Cart::total()),
            '[data-cart-count]' => Cart::count(),
            '#notification' => $this->renderPartial('flash'),
        ];
    }

<div class="cart-items pt-2">
    <ul>
        @foreach ($order->getOrderMenusWithOptions() as $orderItem)
            <li>
                <span class="price pull-right">{{ currency_format($orderItem->subtotal) }}</span>
                <span class="name fw-bold">
                    @if ($orderItem->quantity > 1)
                        <span class="quantity">
                            {{ $orderItem->quantity }} @lang('igniter.cart::default.text_times')
                        </span>
                    @endif
                    {{ $orderItem->name }}
                </span>
                @php $itemOptionGroup = $orderItem->menu_options->groupBy('order_option_category') @endphp
                @if ($itemOptionGroup->isNotEmpty())
                    <ul class="list-unstyled small">
                        @foreach ($itemOptionGroup as $itemOptionGroupName => $itemOptions)
                            <li>
                                <u class="text-muted">{{ $itemOptionGroupName }}:</u>
                                <ul class="list-unstyled">
                                    @foreach ($itemOptions as $itemOption)
                                        <li>
                                            @if ($itemOption->quantity > 1)
                                                {{ $itemOption->quantity }} @lang('igniter.cart::default.text_times')
                                            @endif
                                            {{ $itemOption->order_option_name }} 
                                            @if ($itemOption->order_option_price > 0)
                                                ({{ currency_format($itemOption->quantity * $itemOption->order_option_price) }})
                                            @endif
                                        </li>
                                    @endforeach
                                </ul>
                            </li>
                        @endforeach
                    </ul>
                @endif
                @if (!empty($orderItem->comment))
                    <p class="comment text-muted small">
                        {!! $orderItem->comment !!}
                    </p>
                @endif
            </li>
        @endforeach
    </ul>
</div>

StripeCheckout.php

protected function getPaymentFormFields($order, $data = [])
    {
        $cancelUrl = $this->makeEntryPointUrl('stripe_checkout_cancel_url').'/'.$order->hash;
        $successUrl = $this->makeEntryPointUrl('stripe_checkout_return_url').'/'.$order->hash;
        $successUrl .= '?redirect='.array_get($data, 'successPage').'&cancel='.array_get($data, 'cancelPage');
        

        $fields = [
            'line_items' => [
                [
                    'price_data' => [
                        'currency' => currency()->getUserCurrency(),
                        // All amounts sent to Stripe must be in integers, representing the lowest currency unit (cents)
                        'unit_amount_decimal' => number_format($order->order_total, 2, '.', '') * 100,
                        'product_data' => [
                            'name' => $options[] = $cartOption,
                        ],
                    ],
                    'quantity' => 1,
                ],
            ],
            'cancel_url' => $cancelUrl.'?redirect='.array_get($data, 'cancelPage'),
            'success_url' => $successUrl,
            'mode' => 'payment',
            'metadata' => [
                'order_id' => $order->order_id,
            ],
            'payment_intent_data' => [
                'capture_method' => $this->shouldAuthorizePayment() ? 'manual' : 'automatic',
            ],
        ];

        // Share the email field in our form to Stripe checkout session,
        // so customers don't need to enter twice
        if (!is_null(array_get($data, 'email'))) {
            // if is unregistered customer
            $fields['customer_email'] = array_get($data, 'email');
        } elseif (!is_null($order->customer) && !is_null($order->customer->email)) {
            // else if is registered, get email from customer profile
            $fields['customer_email'] = $order->customer->email;
        }

        $this->fireSystemEvent('payregister.stripecheckout.extendFields', [&$fields, $order, $data]);

        return $fields;
    }