Step 1: Get data from the blade Page and data send to the Store function.

Step 2: In the Controller, Create a store function { store() name as per your choice }.

public function pay(Request $request)
    {
        try {
            Log::info("pay success m kya aa rha h" . $request);

            $response = $this->gateway->purchase(array(
                'amount' => $request->amount,
                'org_slug' => $request->org_slug,
                'admin_email' => $request->admin_email,
                'user_name' => $request->user_name,
                'admin_id' => $request->admin_id,
                'slug' => $request->slug,
                'currency' => env('PAYPAL_CURRENCY'),
                'returnUrl' => url('success'),
                'cancelUrl' => url('error')
            ))->send();

            if ($response->isRedirect()) {
                $response->redirect();
                $request->session()->put('admin_id', $request->admin_id); 
                $request->session()->put('org_slug', $request->org_slug); 
                $request->session()->put('admin_email', $request->admin_email); 
                $request->session()->put('user_name', $request->user_name); 
                $request->session()->put('slug', $request->slug); 
            } else {
                return $response->getMessage();
            }
        } catch (\Throwable $th) {
            return $th->getMessage();
        }
    }

    public function success(Request $request)

    {

        Log::info("paypal success m kya aa rha h" . $request);
        if ($request->input('paymentId') && $request->input('PayerID')) {

            Log::info("paypal request m kya aa rha h" . $request);
            $transaction = $this->gateway->completePurchase(
                array(
                    'payer_id' => $request->input('PayerID'),
                    'admin_id' => $request->input('admin_id'),
                    'user_name' => $request->input('user_name'),
                    'slug' => $request->input('slug'),
                    'admin_email' => $request->input('admin_email'),
                    'org_slug' => $request->input('org_slug'),
                    'transactionReference' => $request->input('paymentId'),
                )
            );


            $response = $transaction->send();
           


            if ($response->isSuccessful()) {

                Log::info("response paypal success m kya aa rha h");

                $arr = $response->getData();

                $payment = new paypal();
                $payment->payment_id = $arr['id'];
                $payment->payer_id = $arr['payer']['payer_info']['payer_id'];
                $payment->payer_email = $arr['payer']['payer_info']['email'];
                $payment->amount = $arr['transactions'][0]['amount']['total'];
                $payment->currency = env('PAYPAL_CURRENCY');
                $payment->payment_status = $arr['state'];
                $payment->admin_id = $request->session()->get('admin_id');
                $payment->user_name = $request->session()->get('user_name');
                $payment->slug = $request->session()->get('slug');
                $payment->admin_email = $request->session()->get('admin_email');
                $payment->org_slug = $request->session()->get('org_slug');
                $payment->save();
                // Store the admin_id in the session
                // $request->session()->put('admin_id', $request->input('admin_id'));
                // return "Payment is Successfull. Your Transaction Id is : " . $arr['id'];
                return back()->with("success", "Payment is Successfull. Your Transaction Id is : " . $arr['id']);
            } else {
                return $response->getMessage();
            }
        } else {
            return back()->with("danger", "Payment declined!!");
        }
    }