<form id="myForm" action="Page_C.php" method="post">
<?php
foreach ($_POST as $a => $b) {
echo '<input type="hidden" name="'.htmlentities($a).'" value="'.htmlentities($b).'">';
}
?>
</form>
<script type="text/javascript">
document.getElementById('myForm').submit();
</script>

@root
me kiyanne checkout karaddi (<form method="post" action="https://sandbox.payhere.lk/pay/checkout"> form eka submit karaddi)
eke form entities wenama pahala thawa route ekakin java script walin submit karala e form data wenama database update karaganna kiyala neda.

    public function payhere_notify(Request $request){

    	$merchant_id         = $request->input('merchant_id');
		$order_id             = $request->input('order_id');
		$payhere_amount     = $request->input('payhere_amount');
		$payhere_currency    = $request->input('payhere_currency');
		$status_code         = $request->input('status_code');
		$method				= $request->input('method');
		$status_message		= $request->input('status_message');
		$card_holder_name	= $request->input('card_holder_name');
		$card_no 			= $request->input('card_no');
		$card_expiry		= $request->input('card_expiry');


		$md5sig                = $request->input('md5sig');
		
		$merchant_secret = 'XXXXXXX';


		$local_md5sig = strtoupper (md5 ( $merchant_id . $order_id . $payhere_amount . $payhere_currency . $status_code . strtoupper(md5($merchant_secret)) ) );

		if (($local_md5sig === $md5sig) AND ($status_code == 2) ){
			
			$statu = $status_code;
        	$payment_up = Payhere::payment_st_update($order_id, $statu, $method, $status_message, $card_holder_name, $card_no, $card_expiry);
        	$pay_st = Payhere::pay_st_update($order_id, $statu);


			}

		elseif (($local_md5sig === $md5sig) AND ($status_code == 0) ){
        	
        	$statu = $status_code;
        	$payment_up = Payhere::payment_st_update($order_id, $statu, $method, $status_message, $card_holder_name, $card_no, $card_expiry);
        	$pay_st = Payhere::pay_st_update($order_id, $statu);

			}



		elseif (($local_md5sig === $md5sig) AND ($status_code == -1) ){
        	
        	$statu = $status_code;
        	$payment_up = Payhere::payment_st_update($order_id, $statu, $method, $status_message, $card_holder_name, $card_no, $card_expiry);
        	$pay_st = Payhere::pay_st_update($order_id, $statu);

			}


		elseif (($local_md5sig === $md5sig) AND ($status_code == -2) ){
        	
        	$statu = $status_code;
        	$payment_up = Payhere::payment_st_update($order_id, $statu, $method, $status_message, $card_holder_name, $card_no, $card_expiry);
        	$pay_st = Payhere::pay_st_update($order_id, $statu);

			}


		elseif (($local_md5sig === $md5sig) AND ($status_code == -3) ){
        	
        	$statu = $status_code;
        	$payment_up = Payhere::payment_st_update($order_id, $statu, $method, $status_message, $card_holder_name, $card_no, $card_expiry);
        	$pay_st = Payhere::pay_st_update($order_id, $statu);

			}


		else {
        	
        	$statu = $status_code;
        	$payment_up = Payhere::payment_st_update($order_id, $statu, $method, $status_message, $card_holder_name, $card_no, $card_expiry);
        	$pay_st = Payhere::pay_st_update($order_id, $statu);

			}

    }```

$merchant_id         = $_POST['merchant_id'];
$order_id             = $_POST['order_id'];
$payhere_amount     = $_POST['payhere_amount'];
$payhere_currency    = $_POST['payhere_currency'];
$status_code         = $_POST['status_code'];
$md5sig                = $_POST['md5sig'];

$merchant_secret = 'XXXXXXXXXXXXX'; // Replace with your Merchant Secret (Can be found on your PayHere account's Settings page)

$local_md5sig = strtoupper (md5 ( $merchant_id . $order_id . $payhere_amount . $payhere_currency . $status_code . strtoupper(md5($merchant_secret)) ) );

if (($local_md5sig === $md5sig) AND ($status_code == 2) ){
        //TODO: Update your database as payment success
}

ubata data base eka update karaganna witari puluwan notify eken, redirect ekata ita passe hadaganin data base status eka anuwa

$app->POST('/payment/notif', PublicJobs::class . ':notify');
$app->POST('/payment/cancel', PublicJobs::class . ':cancel');
$app->POST('/payment/return', PublicJobs::class . ':return');

test.lk/payment/return?order_id=112

site eken payhere ekata hariyata redirect wenawada? Ita passe Payhere eke methanata details fill karala pay click karata ube site eke url ekata "payhere/redirect" back wenawada

controller

        $payhere_currency = 'LKR';
        $payhere_secret='***';
        $merchant_id= '***';

        $this->data = [
            'order' => $order,
            'total' => $grand_total,
            'merchant'=> $merchant_id,
        ];

        return $this->view($response, 'payhere.twig');

view

<form action="https://sandbox.payhere.lk/pay/checkout" method="POST">
<input type="hidden" name="merchant_id" value="{{merchant}}"> <!-- Replace your Merchant ID -->
<input type="hidden" name="notify_url" value="{{'/payment/notify'|page}}">
<input type="hidden" name="cancel_url" value="{{'/payment/cancel'|page}}">
<input type="hidden" name="return_url" value="{{'/payment/return'|page}}">
<input type="text" name="order_id" value="{{order}}">
<input type="text" name="items" value="Door bell wireless"><br>
<input type="text" name="currency" value="LKR">
<input type="text" name="amount" value="{{grand_total}}">
<input type="submit" value="Continue to checkout" class="btn">
</form>

payhere site ekata gihilla payhere eken ewanne "retutn" ekak.. "notify" ekak nemei

$app->POST('/payment/notif', PublicJobs::class . ':notify');
$app->POST('/payment/cancel', PublicJobs::class . ':cancel');
$app->POST('/payment/return', PublicJobs::class . ':return');

mn me widiyata POST routes hadala thibunata payhere eken return karanne GET ekak.. notify funtion ekata calle wenneth ne.ai ehema wenne