Razorpay Payment Gateway Integration In Codeigniter using cURL

In this tutorial, We have shared how to integrate Razorpay payment gateway in Codeigniter using cURL. Razorpay is the most popular payment gateway in India. Razorpay provides clean, fast, secure payments services with hassle-free integration with developer-friendly APIs. It allows online businesses to accept and process payment modes like Cards, Net-banking, Wallets & UPI. Developer Friendly API, Fast Onboarding, and No Setup. Razorpay payment gateway is the easiest option for the web developer to implement a payment system on the Web Application.

Step 1: Create Razorpay Account

First we need to create account on Razorpay and generate KeyId and Secret Key. We will keep created Razorpay account in test mode to test payment functionality.

Step 2: Update Razorpay Config Details

Here in this example, we will use Test App to integrate Razorpay gateway. So we will update config.php with KeyID and Secret Key from Razorpay.

Step 3: Open a file constants

Open “application/config/constants.php” file and define constants:

  <?php
    define('RAZOR_KEY_ID', 'XXXXXXXXXX');
    define('RAZOR_KEY_SECRET', 'XXXXXXXXXX');
  ?>

<?php

define('RAZOR_KEY_ID', 'XXXXXXXXXX');

define('RAZOR_KEY_SECRET', 'XXXXXXXXXX');

Step 4: Create a Controller file Razorpay

Create a model file named “Razorpay.php” inside “application/controllers” folder.

<?php

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 * @package Razorpay :  CodeIgniter Razorpay Gateway
 *
 * @author TechArise Team
 *
 * @email  info@techarise.com
 *   
 * Description of Razorpay Controller
 */
if (!defined('BASEPATH'))
    exit('No direct script access allowed');

class Razorpay extends CI_Controller {
    // construct
    public function __construct() {
        parent::__construct();   
        $this->load->model('Site', 'site');     
    }
    // index page
    public function index() {
        $data['title'] = 'Razorpay | TechArise';  
        $data['productInfo'] = $this->site->getProduct();           
        $this->load->view('razorpay/index', $data);
    }
    
    // checkout page
    public function checkout($id) {
        $data['title'] = 'Checkout payment | TechArise';  
        $this->site->setProductID($id);
        $data['itemInfo'] = $this->site->getProductDetails(); 
        $data['return_url'] = site_url().'razorpay/callback';
        $data['surl'] = site_url().'razorpay/success';;
        $data['furl'] = site_url().'razorpay/failed';;
        $data['currency_code'] = 'INR';
        $this->load->view('razorpay/checkout', $data);
    }

    // initialized cURL Request
    private function get_curl_handle($payment_id, $amount)  {
        $url = 'https://api.razorpay.com/v1/payments/'.$payment_id.'/capture';
        $key_id = RAZOR_KEY_ID;
        $key_secret = RAZOR_KEY_SECRET;
        $fields_string = "amount=$amount";
        //cURL Request
        $ch = curl_init();
        //set the url, number of POST vars, POST data
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_USERPWD, $key_id.':'.$key_secret);
        curl_setopt($ch, CURLOPT_TIMEOUT, 60);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
        curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__).'/ca-bundle.crt');
        return $ch;
    }   
        
    // callback method
    public function callback() {        
        if (!empty($this->input->post('razorpay_payment_id')) && !empty($this->input->post('merchant_order_id'))) {
            $razorpay_payment_id = $this->input->post('razorpay_payment_id');
            $merchant_order_id = $this->input->post('merchant_order_id');
            $currency_code = 'INR';
            $amount = $this->input->post('merchant_total');
            $success = false;
            $error = '';
            try {                
                $ch = $this->get_curl_handle($razorpay_payment_id, $amount);
                //execute post
                $result = curl_exec($ch);
                $http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
                if ($result === false) {
                    $success = false;
                    $error = 'Curl error: '.curl_error($ch);
                } else {
                    $response_array = json_decode($result, true);
                   // echo "<pre>";print_r($response_array);exit;
                        //Check success response
                        if ($http_status === 200 and isset($response_array['error']) === false) {
                            $success = true;
                        } else {
                            $success = false;
                            if (!empty($response_array['error']['code'])) {
                                $error = $response_array['error']['code'].':'.$response_array['error']['description'];
                            } else {
                                $error = 'RAZORPAY_ERROR:Invalid Response <br/>'.$result;
                            }
                        }
                }
                //close connection
                curl_close($ch);
            } catch (Exception $e) {
                $success = false;
                $error = 'OPENCART_ERROR:Request to Razorpay Failed';
            }
            if ($success === true) {
                if(!empty($this->session->userdata('ci_subscription_keys'))) {
                    $this->session->unset_userdata('ci_subscription_keys');
                 }
                if (!$order_info['order_status_id']) {
                    redirect($this->input->post('merchant_surl_id'));
                } else {
                    redirect($this->input->post('merchant_surl_id'));
                }

            } else {
                redirect($this->input->post('merchant_furl_id'));
            }
        } else {
            echo 'An error occured. Contact site administrator, please!';
        }
    } 
    public function success() {
        $data['title'] = 'Razorpay Success | TechArise';  
        $this->load->view('razorpay/success', $data);
    }  
    public function failed() {
        $data['title'] = 'Razorpay Failed | TechArise';            
        $this->load->view('razorpay/failed', $data);
    } 
}
?>

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<?php

* To change this license header, choose License Headers in Project Properties.

* To change this template file, choose Tools | Templates

* and open the template in the editor.

/**

* @package Razorpay : CodeIgniter Razorpay Gateway

* @author TechArise Team

* @email info@techarise.com

* Description of Razorpay Controller

if (!defined('BASEPATH'))

exit('No direct script access allowed');

class Razorpay extends CI_Controller {

// construct

public function __construct() {

parent::__construct();

$this->load->model('Site', 'site');

}

// index page

public function index() {

$data['title'] = 'Razorpay | TechArise';

$data['productInfo'] = $this->site->getProduct();

$this->load->view('razorpay/index', $data);

}

// checkout page

public function checkout($id) {

$data['title'] = 'Checkout payment | TechArise';

$this->site->setProductID($id);

$data['itemInfo'] = $this->site->getProductDetails();

$data['return_url'] = site_url().'razorpay/callback';

$data['surl'] = site_url().'razorpay/success';;

$data['furl'] = site_url().'razorpay/failed';;

$data['currency_code'] = 'INR';

$this->load->view('razorpay/checkout', $data);

}

// initialized cURL Request

private function get_curl_handle($payment_id, $amount) {

$url = 'https://api.razorpay.com/v1/payments/'.$payment_id.'/capture';

$key_id = RAZOR_KEY_ID;

$key_secret = RAZOR_KEY_SECRET;

$fields_string = "amount=$amount";

//cURL Request

$ch = curl_init();

//set the url, number of POST vars, POST data

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_USERPWD, $key_id.':'.$key_secret);

curl_setopt($ch, CURLOPT_TIMEOUT, 60);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);

curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__).'/ca-bundle.crt');

return $ch;

}

// callback method

public function callback() {

if (!empty($this->input->post('razorpay_payment_id')) && !empty($this->input->post('merchant_order_id'))) {

$razorpay_payment_id = $this->input->post('razorpay_payment_id');

$merchant_order_id = $this->input->post('merchant_order_id');

$currency_code = 'INR';

$amount = $this->input->post('merchant_total');

$success = false;

$error = '';

try {

$ch = $this->get_curl_handle($razorpay_payment_id, $amount);

//execute post

$result = curl_exec($ch);

$http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if ($result === false) {

$success = false;

$error = 'Curl error: '.curl_error($ch);

} else {

$response_array = json_decode($result, true);

// echo "<pre>";print_r($response_array);exit;

//Check success response

if ($http_status === 200 and isset($response_array['error']) === false) {

$success = true;

} else {

$success = false;

if (!empty($response_array['error']['code'])) {

$error = $response_array['error']['code'].':'.$response_array['error']['description'];

} else {

$error = 'RAZORPAY_ERROR:Invalid Response <br/>'.$result;

}

//close connection

curl_close($ch);

} catch (Exception $e) {

$success = false;

$error = 'OPENCART_ERROR:Request to Razorpay Failed';

}

if ($success === true) {

if(!empty($this->session->userdata('ci_subscription_keys'))) {

$this->session->unset_userdata('ci_subscription_keys');

}

if (!$order_info['order_status_id']) {

redirect($this->input->post('merchant_surl_id'));

} else {

redirect($this->input->post('merchant_surl_id'));

}

} else {

redirect($this->input->post('merchant_furl_id'));

}

} else {

echo 'An error occured. Contact site administrator, please!';

}

public function success() {

$data['title'] = 'Razorpay Success | TechArise';

$this->load->view('razorpay/success', $data);

}

public function failed() {

$data['title'] = 'Razorpay Failed | TechArise';

$this->load->view('razorpay/failed', $data);

}

Step 5: Create a view file index

Create a view file named “index.php” inside “application/views/razorpay” folder

<?php
$this->load->view('templates/header');
?>
<div class="row">
    <div class="col-lg-12">
        <h2>Razorpay Payment Gateway Integration In Codeigniter using cURL</h2>                 
    </div>
</div><!-- /.row -->
<div class="row">
    <?php foreach($productInfo as $key=>$element) { ?>
        <div class="col-lg-6 col-md-6 mb-6">
            <div class="card h-100">
                <a href="#"><img src="<?php print $element['image'];?>" alt="product 10" title="product 10" class="card-img-top"></a>
                <div class="card-body">
                    <h4 class="card-title">
                        <a href="#"><?php print $element['name'];?></a>
                    </h4>
                    <h5>₹<?php print $element['price'];?></h5>
                    <p class="card-text"><?php print $element['description'];?></p>
                </div>
                <div class="card-footer text-right">                    
                    <a href="<?php site_url()?>checkout/<?php print $element['product_id'];?>" class="add-to-cart btn-success btn btn-sm" data-productid="<?php print $element['product_id'];?>" title="Add to Cart"><i class="fa fa-shopping-cart fa-fw"></i> Buy Now</a>                    
                </div>
            </div>
        </div>
    <?php } ?>          
</div>
<?php
$this->load->view('templates/footer');
?>

<?php

$this->load->view('templates/header');

<h2>Razorpay Payment Gateway Integration In Codeigniter using cURL</h2>

</div>

</div>

<?php foreach($productInfo as $key=>$element) { ?>

<a href="#"><img src="<?php print $element['image'];?>" alt="product 10" title="product 10" class="card-img-top"></a>

</h4>

</div>

<a href="<?php site_url()?>checkout/<?php print $element['product_id'];?>" class="add-to-cart btn-success btn btn-sm" data-productid="<?php print $element['product_id'];?>" title="Add to Cart"><i class="fa fa-shopping-cart fa-fw"></i> Buy Now</a>

</div>

<?php } ?>

</div>

<?php

$this->load->view('templates/footer');

Step 6: Create a view file checkout

Create a view file named “checkout.php” inside “application/views/razorpay” folder

<?php
$this->load->view('templates/header');
?>
<div class="row">
    <div class="col-lg-12">
        <h2>Razorpay Payment Gateway Integration In Codeigniter using cURL</h2>                 
    </div>
</div><!-- /.row -->
<?php
$productinfo = $itemInfo['description'];
$txnid = time();
$surl = $surl;
$furl = $furl;        
$key_id = RAZOR_KEY_ID;
$currency_code = $currency_code;            
$total = ($itemInfo['price']* 100); 
$amount = $itemInfo['price'];
$merchant_order_id = $itemInfo['product_id'];
$card_holder_name = 'TechArise Team';
$email = 'info@techarise.com';
$phone = '9000000001';
$name = APPLICATION_NAME;
$return_url = site_url().'razorpay/callback';
?>
<div class="row">
    <div class="col-lg-12">
        <?php if(!empty($this->session->flashdata('msg'))){ ?>
            <div class="alert alert-success">
                <?php echo $this->session->flashdata('msg'); ?>
            </div>        
        <?php } ?>
        <?php if(validation_errors()) { ?>
          <div class="alert alert-danger">
            <?php echo validation_errors(); ?>
          </div>
        <?php } ?>
    </div>
</div>
 <form name="razorpay-form" id="razorpay-form" action="<?php echo $return_url; ?>" method="POST">
  <input type="hidden" name="razorpay_payment_id" id="razorpay_payment_id" />
  <input type="hidden" name="merchant_order_id" id="merchant_order_id" value="<?php echo $merchant_order_id; ?>"/>
  <input type="hidden" name="merchant_trans_id" id="merchant_trans_id" value="<?php echo $txnid; ?>"/>
  <input type="hidden" name="merchant_product_info_id" id="merchant_product_info_id" value="<?php echo $productinfo; ?>"/>
  <input type="hidden" name="merchant_surl_id" id="merchant_surl_id" value="<?php echo $surl; ?>"/>
  <input type="hidden" name="merchant_furl_id" id="merchant_furl_id" value="<?php echo $furl; ?>"/>
  <input type="hidden" name="card_holder_name_id" id="card_holder_name_id" value="<?php echo $card_holder_name; ?>"/>
  <input type="hidden" name="merchant_total" id="merchant_total" value="<?php echo $total; ?>"/>
  <input type="hidden" name="merchant_amount" id="merchant_amount" value="<?php echo $amount; ?>"/>
</form>
    <div class="row">   
        <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">                        
            <table class="table table-bordered table-hover table-striped print-table order-table" style="font-size:11px;">
                <thead class="bg-primary">
                    <tr>
                        <th width="15%" class="text-left" style="vertical-align: inherit">Image</th>
                        <th width="30%" class="text-left" style="vertical-align: inherit">Name</th>
                        <th width="15%" class="text-left" style="vertical-align: inherit">Price</th>
                        <th width="15%" class="text-right" style="vertical-align: inherit">Qty</th>
                        <th width="15%" class="text-right" style="vertical-align: inherit">Sub Total</th>                        
                    </tr>
                </thead>                        
                <tbody>                    
                    <tr>
                        <td class="text-left"><img width="80" height="80" src="<?php print $itemInfo['image'];?>"></td>
                        <td class="text-left"><?php print $itemInfo['name'];?></td>
                        <td class="text-left"><?php print $itemInfo['price'];?></td>
                        <td class="text-right">1</td>
                        <td class="text-right"><?php print $itemInfo['price'];?></td>                        
                    </tr>                        
                </tbody>                        
            </table>
        </div>
    </div>

    <div class="row">
        <div class="col-lg-12 text-right">
            <a href="<?php print site_url();?>" name="reset_add_emp" id="re-submit-emp" class="btn btn-warning"><i class="fa fa-mail-reply"></i> Back</a>
            <input  id="submit-pay" type="submit" onclick="razorpaySubmit(this);" value="Pay Now" class="btn btn-primary" />
        </div>
    </div>


<?php
$this->load->view('templates/footer');
?>
<script src="https://checkout.razorpay.com/v1/checkout.js"></script>
<script>
  var razorpay_options = {
    key: "<?php echo $key_id; ?>",
    amount: "<?php echo $total; ?>",
    name: "<?php echo $name; ?>",
    description: "Order # <?php echo $merchant_order_id; ?>",
    netbanking: true,
    currency: "<?php echo $currency_code; ?>",
    prefill: {
      name:"<?php echo $card_holder_name; ?>",
      email: "<?php echo $email; ?>",
      contact: "<?php echo $phone; ?>"
    },
    notes: {
      soolegal_order_id: "<?php echo $merchant_order_id; ?>",
    },
    handler: function (transaction) {
        document.getElementById('razorpay_payment_id').value = transaction.razorpay_payment_id;
        document.getElementById('razorpay-form').submit();
    },
    "modal": {
        "ondismiss": function(){
            location.reload()
        }
    }
  };
  var razorpay_submit_btn, razorpay_instance;

  function razorpaySubmit(el){
    if(typeof Razorpay == 'undefined'){
      setTimeout(razorpaySubmit, 200);
      if(!razorpay_submit_btn && el){
        razorpay_submit_btn = el;
        el.disabled = true;
        el.value = 'Please wait...';  
      }
    } else {
      if(!razorpay_instance){
        razorpay_instance = new Razorpay(razorpay_options);
        if(razorpay_submit_btn){
          razorpay_submit_btn.disabled = false;
          razorpay_submit_btn.value = "Pay Now";
        }
      }
      razorpay_instance.open();
    }
  }  
</script>

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<?php

$this->load->view('templates/header');

<h2>Razorpay Payment Gateway Integration In Codeigniter using cURL</h2>

</div>

</div>

<?php

$productinfo = $itemInfo['description'];

$txnid = time();

$surl = $surl;

$furl = $furl;

$key_id = RAZOR_KEY_ID;

$currency_code = $currency_code;

$total = ($itemInfo['price']* 100);

$amount = $itemInfo['price'];

$merchant_order_id = $itemInfo['product_id'];

$card_holder_name = 'TechArise Team';

$email = 'info@techarise.com';

$phone = '9000000001';

$name = APPLICATION_NAME;

$return_url = site_url().'razorpay/callback';

<?php if(!empty($this->session->flashdata('msg'))){ ?>

<?php echo $this->session->flashdata('msg'); ?>

</div>

<?php } ?>

<?php if(validation_errors()) { ?>

<?php echo validation_errors(); ?>

</div>

<?php } ?>

</div>

<form name="razorpay-form" id="razorpay-form" action="<?php echo $return_url; ?>" method="POST">

</form>

<tr>

<th width="15%" class="text-left" style="vertical-align: inherit">Image</th>

<th width="15%" class="text-left" style="vertical-align: inherit">Price</th>

<th width="15%" class="text-right" style="vertical-align: inherit">Sub Total</th>

</tr>

</thead>

<tbody>

<tr>

</tr>

</tbody>

</table>

</div>

<a href="<?php print site_url();?>" name="reset_add_emp" id="re-submit-emp" class="btn btn-warning"><i class="fa fa-mail-reply"></i> Back</a>

</div>

<?php

$this->load->view('templates/footer');

var razorpay_options = {

key: "<?php echo $key_id; ?>",

amount: "<?php echo $total; ?>",

name: "<?php echo $name; ?>",

description: "Order # <?php echo $merchant_order_id; ?>",

netbanking: true,

currency: "<?php echo $currency_code; ?>",

prefill: {

name:"<?php echo $card_holder_name; ?>",

email: "<?php echo $email; ?>",

contact: "<?php echo $phone; ?>"

notes: {

soolegal_order_id: "<?php echo $merchant_order_id; ?>",

handler: function (transaction) {

document.getElementById('razorpay_payment_id').value = transaction.razorpay_payment_id;

document.getElementById('razorpay-form').submit();

"modal": {

"ondismiss": function(){

location.reload()

}

};

var razorpay_submit_btn, razorpay_instance;

function razorpaySubmit(el){

if(typeof Razorpay == 'undefined'){

setTimeout(razorpaySubmit, 200);

if(!razorpay_submit_btn && el){

razorpay_submit_btn = el;

el.disabled = true;

el.value = 'Please wait...';

}

} else {

if(!razorpay_instance){

razorpay_instance = new Razorpay(razorpay_options);

if(razorpay_submit_btn){

razorpay_submit_btn.disabled = false;

razorpay_submit_btn.value = "Pay Now";

}

razorpay_instance.open();

}

</script>

Step 7: Open a file routes

Open “application/config/routes.php” file and add code like as bellow:

<?php
    // routes
  $route['default_controller'] = 'razorpay/index';
  $route['checkout/(:any)'] = "razorpay/checkout/$1";
?>

<?php

// routes

$route['default_controller'] = 'razorpay/index';

$route['checkout/(:any)'] = "razorpay/checkout/$1";

Domestic

Mastercard	Visa
5104_0155_5555_5558, 5104_0600_0000_0008	4111_1111_1111_1111

International

Mastercard	Visa
5555_5555_5555_4444, 5105_1051_0510_5100	4012_8888_8888_1881, 4000_1841_8621_8826

Demo Download