Laravel Use View

Your question is incoherent, please organise it so we can better understand!

controller page is not a term I recognise?

sound like you need to watch this

https://laracasts.com/series/laravel-8-from-scratch

Controller:

namespace App\Http\Controllers;

use Illuminate\Http\Response as LaravelResponse; use Illuminate\Http\Request; use App\Http\Controllers\Controller; ............

class PayController extends Controller {

public function show()
{


                    
						$merchantId = '------';
                        $merchantKey = '------';
                        $merchantSalt = '------';
                        $email = 'Auth::user()->email';
                        $paymentAmount = Crypt::decrypt($secureamount)*"100";
                        $merchantOid = '$random_id';
                        $userName = $request->user()->fname.' '.$request->user()->lname;
                        $userAddress = $request->user()->address;
                        $userPhone = $request->user()->mobile;
                        $merchantOkUrl = route("success");
                        $merchantFailUrl = route("fail");
                        $userBasket = '';
                        $timeoutLimit = '30';
                        $debugOn = 1;
                        $testMode = 0;
                        $noInstallment = 0;
                        $maxInstallment = 0;
                        $currency = 'GBP';
                        $userIp = $request->ip();
						
						$hashStr = $merchantId . $userIp . $merchantOid . $email . $paymentAmount . $userBasket 
                . $noInstallment . $maxInstallment . $currency . $testMode;
    $stToken = base64_encode(hash_hmac('sha256', $hashStr . $merchantSalt, $merchantKey, true));
    
    $response = Http::timeout(20)
        ->withOptions([
            'verify' => App::environment('production'),
            'allow_redirects' => true,
            'curl' => [
                CURLOPT_FRESH_CONNECT => true,
            ],
        ])->post('wwwcom/api/get-token', [
            'merchant_id' => $merchantId,
            'user_ip' => $userIp,
            'merchant_oid' => $merchantOid,
            'email' => $email,
            'payment_amount' => $paymentAmount,
            'st_token' => $stToken,
            'user_basket' => $userBasket,
            'debug_on' => $debugOn,
            'no_installment' => $noInstallment,
            'max_installment' => $maxInstallment,
            'user_name' => $userName,
            'user_address' => $userAddress,
            'user_phone' => $userPhone,
            'merchant_ok_url' => $merchantOkUrl,
            'merchant_fail_url' => $merchantFailUrl,
            'timeout_limit' => $timeoutLimit,
            'currency' => $currency,
            'test_mode' => $testMode,
        ])->throw(function (Response $response, RequestException $e) {
         
            return back()->withErrors($e->getMessage());
        });
        $iframeSrc=$this->iframeSrc;
        

    if($response->json('status') === 'success') {
        return view('front.checkout', [
            'iframeSrc' => sprintf('wwwcom/pay/%s', $response->json('token')),
        ]);   
        return view('front.checkout', compact('iframeSrc'));
    }

   
    return back()->withErrors($response->json('reason'));
						
}

}

Route;

Route::get('gotocheckout', [PayController::class, 'show'])->name('show');

checkout.blade.php;

					    <meta charset="UTF-8">
					    <div class="card-header"><h1>Credit / Debit Card</h1></div>
					    <div class="card-body">
					    <div style="width: 100%;margin: 0 auto;display: table;">
					     {{route('show')}};
				        
						<script src="wwwcom/js/iframeResizer.min.js"></script>
						<iframe src="{{ $iframeSrc }}" id="payiframe" frameborder="0"scrolling="no" style="width: 100%;"></iframe>
						<script>iFrameResize({},'#payiframe');</script>

						</div>
					    </div>
						</div>																																																																																								

1 First question is, when I run the get part in the route here, one.

Undefined variable ($secureamount) error.

When I write the information in the controller directly in blade, ($secureamount) works.

How can I achieve this in controller? (How can I include the checkout.blade template in the controller?

2 Second question is; {{ $iframeSrc }} This part is required in the controller. Likewise, when I create it as above; Undefined variable ($iframeSrc) error. How can I pull this function from the Controller to blade?

Imagine, writing code like that, being 'happy' with it and then expecting people to invest time in trying to wade through it to try and make heads or tails of it... format your code properly and explain what problem you're actually trying to fix...