PHP code example of paytm / payment

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

paytm / payment example snippets

// Paytm configuration settings...
    'Paytm' => [
        'merchantKey' => env('MERCHANT_KEY',''),
        'merchantId' => env('MERCHANT_ID',''),
        'enviroment' => env('PAYTM_ENVIRONMENT',''),
        'callbackUrl' => env('PAYTM_CALLBACK_URL',''),
    ],

 
// src/Controller/PaytmController.php
namespace App\Controller;

use Cake\Controller\Controller;
use Cake\ORM\TableRegistry;
use paytm\payment\Paytm;

class PaytmController extends Controller
{

    // display a form for payment
    public function initiate()
    {
        $this->render('paytm');
    }

    /* Make payment */
    public function payment(){
        
        if ($this->request->is('post')) {
        $postData = $this->request->getData();
        $amount = 1; //Amount to be paid
        $order_id = time();
        $enviroment = env('PAYTM_ENVIRONMENT');
        $userData = [
            "mid"  => env('PAYTM_MERCHANT_ID'), //mandatory
            "websiteName"   => (strpos($enviroment, "stage") == true) ? "WEBSTAGING" : "DEFAULT", //mandatory
            "callbackUrl"   => env('PAYTM_CALLBACK_URL'), //mandatory
            'name' => $postData['name'], // Name of user
            'mobile' => $postData['mobile'], //Mobile number of user
            'email' => $postData['email'], //Email of user
            'txnAmount' => $amount, //mandatory
            'orderId' => $order_id //mandatory
        ];
        $Paytm = new Paytm();
        $txntoken = $Paytm->initiatePayment($userData);
        if(!empty($txntoken)){
            $data = array('success'=> true,'txnToken' => $txntoken, 'txnAmount' => $amount, 'orderId' =>$order_id );
            $jsonData = json_encode($data);
        
        }else{
            //echo json_encode(array('success'=> false,'txnToken' => '','data'=>$res));
            $data = array('success'=> false,'txnToken' => '', 'txnAmount' => '', 'orderId' => '' );
            $jsonData = json_encode($data);
        }

        $this->response = $this->response->withType('application/json');
        // Set the JSON data as the response body
        $this->response = $this->response->withStringBody($jsonData);
        // Return the response
        return $this->response;

        }

    }

    /*Paytm Callback */
    public function paymentCallback()
    {
        if(!empty($_POST['CHECKSUMHASH'])){
            $post_checksum = $_POST['CHECKSUMHASH'];
        }else{
            $post_checksum = "";
        }

        if(! empty($_POST) && isset($_POST['STATUS'])){
             // Access the POST data from the request
            $callbackData = $this->request->getData();
            $Paytm = new Paytm();
            $requestData = $Paytm->verifyPaymentResponse($_POST);
            if(isset($requestData['body']) && $requestData['body']['resultInfo']['resultStatus'] == 'TXN_SUCCESS'){
                $msg = "Thank you for your order. Your transaction has been successful.";
                $this->set(compact('msg'));
                $this->render('success');
            }else{
                $msg = "Thank You. However, the transaction has been Failed For Reason: " . $requestData['body']['resultInfo']['resultMsg'];
                $this->set(compact('msg'));
                $this->render('error');
            }
            
        }
    }
}

<!-- File: templates/Paytm/paytm.php -->
<?= $this->Html->css('https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css') 

### Write code in src/Application.php