For any queries you can reach us at infovistarindia@gmail.com / WhatsApp us: +919158876092

Razorpay Payment Gateway Integration using CodeIgniter 4

Overview

In this tutorial, we will learn how to integrate RazorPay payment gateway in CodeIgniter 4. RazorPay is a well-known payment gateway platform in India. Razorpay provides clean, secure and fast payments services with hassle free integration with developer friendly APIs. It supports various payment modes such as Cards, Net-banking, Wallets & UPI.

Setup RazorPay Account Here, we are using 2 files for generating PDF file:
Controller: 	Checkout.php		app\Controllers\Checkout.php
View:		checkout.php            app\Views\checkout.php

app\Controllers\Checkout.php

<?php namespace App\Controllers;

class Razorpay extends BaseController {

	public function __construct() {
		$this->session 	= \Config\Services::session();
	}

	public function index() {
		$data = [];
		$data['title']              = 'Checkout payment | Infovistar';  
        $data['callback_url']       = base_url().'/razorpay/callback';
        $data['surl']               = base_url().'/razorpay/success';;
        $data['furl']               = base_url().'/razorpay/failed';;
        $data['currency_code']      = 'INR';
		echo view("checkout", $data);
	}

	// initialized cURL Request
    private function curl_handler($payment_id, $amount)  {
        $url            = 'https://api.razorpay.com/v1/payments/'.$payment_id.'/capture';
        $key_id         = "YOUR_KEY_ID";
        $key_secret     = "YOUR_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);
        return $ch;
    }   

    // callback method
    public function callback() {   
    	if (!empty($this->request->getPost('razorpay_payment_id')) && !empty($this->request->getPost('merchant_order_id'))) {

    		$razorpay_payment_id 	= $this->request->getPost('razorpay_payment_id');
            $merchant_order_id 		= $this->request->getPost('merchant_order_id');

            $this->session->set('razorpay_payment_id', $this->request->getPost('razorpay_payment_id'));
            $this->session->set('merchant_order_id', $this->request->getPost('merchant_order_id'));
            $currency_code = 'INR';
            $amount = $this->request->getPost('merchant_total');

            $success = false;
            $error = '';
            try {                
                $ch = $this->curl_handler($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);
                        //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 curl connection
                curl_close($ch);
            } catch (Exception $e) {
                $success = false;
                $error = 'Request to Razorpay Failed';
            }

            if ($success === true) {
                if(!empty($this->session->get('ci_subscription_keys'))) {
                    $this->session->unset('ci_subscription_keys');
                }
                if (!$order_info['order_status_id']) {
                    return redirect()->to($this->request->getPost('merchant_surl_id'));
                } else {
                    return redirect()->to($this->request->getPost('merchant_surl_id'));
                }

            } else {
                return redirect()->to($this->request->getPost('merchant_furl_id'));
            }
    	} else {
            echo 'An error occured. Contact site administrator, please!';
        }
    }

    public function success() {
        $data['title'] = 'Razorpay Success | TechArise';
        echo "<h4>Your transaction is successful</h4>";  
        echo "<br/>";
        echo "Transaction ID: ".$this->session->get('razorpay_payment_id');
        echo "<br/>";
        echo "Order ID: ".$this->session->get('merchant_order_id');
    }  
    public function failed() {
        $data['title'] = 'Razorpay Failed | TechArise';  
        echo "<h4>Your transaction got Failed</h4>";            
        echo "<br/>";
        echo "Transaction ID: ".$this->session->get('razorpay_payment_id');
        echo "<br/>";
        echo "Order ID: ".$this->session->get('merchant_order_id');
    }

}

app\Views\checkout.php

<!DOCTYPE html>
<html>
<head>
    <title>Razorpay Payment Gateway</title>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
    <meta name="description" content="">
    <meta name="author" content="">
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
</head>
<body>

<?php
$description        = "Product Description";
$txnid              = date("YmdHis");     
$key_id             = "YOUR_KEY_ID";
$currency_code      = $currency_code;            
$total              = (1* 100); // 100 = 1 indian rupees
$amount             = 1;
$merchant_order_id  = "ABC-".date("YmdHis");
$card_holder_name   = 'Junaid Shaikh';
$email              = 'coexistech@gmail.com';
$phone              = '9158876092';
$name               = "RazorPay Infovistar";
?>

    <div class="container">
        <div class="page-header">
            <h1>Pay with Razorpay</h1>
        </div>
        <div class="page-body">
            <form name="razorpay-form" id="razorpay-form" action="<?php echo $callback_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 $description; ?>"/>
                <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>

            <table width="100%">
                <tr>
                    <th>No.</th>
                    <th>Product Name</th>
                    <th class="text-right">Cost</th>
                </tr>
                <tr>
                    <td>1</td>
                    <td>HeadPhones</td>
                    <td class="text-right">₹ 1.00</td>
                </tr>
            </table>
            <div class="mt-2 text-right">
                <input  id="pay-btn" type="submit" onclick="razorpaySubmit(this);" value="Buy Now" class="btn btn-primary" />
            </div>
        </div>
    </div>


    <script src="https://checkout.razorpay.com/v1/checkout.js"></script>
    <script>
        var 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; ?>", // INR
            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_pay_btn, instance;
        function razorpaySubmit(el) {
            if(typeof Razorpay == 'undefined') {
                setTimeout(razorpaySubmit, 200);
                if(!razorpay_pay_btn && el) {
                    razorpay_pay_btn    = el;
                    el.disabled         = true;
                    el.value            = 'Please wait...';  
                }
            } else {
                if(!instance) {
                    instance = new Razorpay(options);
                    if(razorpay_pay_btn) {
                    razorpay_pay_btn.disabled   = false;
                    razorpay_pay_btn.value      = "Pay Now";
                    }
                }
                instance.open();
            }
        }  
    </script>

</body>
</html>

How to run?

Open command prompt or terminal, go to project directory and enter following command:

php spark serve

CodeIgniter development server started on http://localhost:8080