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Cashfree payment gateway integration PHP with database insert


index.php

<!DOCTYPE html>
<html>
  <head>
    <title>Cashfree-PG TestForm</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  </head>
  <body>
    <br>
    <br>
    <div class="container fluid">
      <h1 align="center">Cashfree PG Test Form</h1>
      <div class="alert alert-info">
        <strong>Note: </strong> Please insert your <span class="label label-info">Secret_key</span> in request and response files.
      </div>
      <div class="alert alert-info">
        <strong>Note: </strong> Please change <span class="label label-info">$mode</span> to "TEST" in request.php if using Test appId/secretKey credentials. Access test credentials <a href="https://test.gocashfree.com/merchant/pg#api-key">here</a> and production credentials <a href="https://merchant.cashfree.com/merchant/pg#api-key">here</a>.
      </div>
      <form id="redirectForm" method="post" action="request.php">
        <div class="form-group">
          <label>App ID:</label><br>
          <input class="form-control" name="appId" placeholder="Enter App ID here (Ex. 123456a7890bc123defg4567)"/>
        </div>
        <div class="form-group">
          <label>Order ID:</label><br>
          <input class="form-control" name="orderId" placeholder="Enter Order ID here (Ex. order00001)"/>
        </div>
        <div class="form-group">
          <label>Order Amount:</label><br>
          <input class="form-control" name="orderAmount" placeholder="Enter Order Amount here (Ex. 100)"/>
        </div>
        <div class="form-group">
          <label>Order Currency:</label><br>
          <input class="form-control" name="orderCurrency" value="INR" placeholder="Enter Currency here (Ex. INR)"/>
        </div>
        <div class="form-group">
          <label>Order Note:</label><br>
          <input class="form-control" name="orderNote" placeholder="Enter Order Note here (Ex. Test order)"/>
        </div>    
        <div class="form-group">
          <label>Name:</label><br>
          <input class="form-control" name="customerName" placeholder="Enter your name here (Ex. John Doe)"/>
        </div>
        <div class="form-group">
          <label>Email:</label><br>
          <input class="form-control" name="customerEmail" placeholder="Enter your email address here (Ex. [email protected])"/>
        </div>
        <div class="form-group">
          <label>Phone:</label><br>
          <input class="form-control" name="customerPhone" placeholder="Enter your phone number here (Ex. 9999999999)"/>
        </div>
        <div class="form-group">
          <label>Return URL:</label><br>
          <input class="form-control" name="returnUrl" placeholder="Enter the URL to which customer will be redirected (Ex. www.example.com)"/>
        </div>        
        <div class="form-group">
          <label>Notify URL:</label><br>
          <input class="form-control" name="notifyUrl" placeholder="Enter the URL to get server notificaitons (Ex. www.example.com)"/>
        </div>
        <button type="submit" class="btn btn-primary btn-block" value="Pay">Submit</button>
        <br> 
        <br>
      </form>
    </div>
    <br>    
    <br>    
    <br>    
    <br>    
  </body>
</html>

request.php

<!DOCTYPE html>
<html>
<head>
  <title>Cashfree - Signature Generator</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">

</head>
<body onload="document.frm1.submit()">


<?php 
$mode = "PROD"; //<------------ Change to TEST for test server, PROD for production-->

extract($_POST);
  $secretKey = "f752ab8ef692fdbb444a73193e2e781145efc629";
  $postData = array( 
  "appId" => $appId, 
  "orderId" => $orderId, 
  "orderAmount" => $orderAmount, 
  "orderCurrency" => $orderCurrency, 
  "orderNote" => $orderNote, 
  "customerName" => $customerName, 
  "customerPhone" => $customerPhone, 
  "customerEmail" => $customerEmail,
  "returnUrl" => $returnUrl, 
  "notifyUrl" => $notifyUrl,
);
ksort($postData);
$signatureData = "";
foreach ($postData as $key => $value){
    $signatureData .= $key.$value;
}
$signature = hash_hmac('sha256', $signatureData, $secretKey,true);
$signature = base64_encode($signature);

if ($mode == "TEST") {
  $url = "https://www.cashfree.com/checkout/post/submit";
} else {
  $url = "https://test.cashfree.com/billpay/checkout/post/submit";
}

?>
  <form action="<?php echo $url; ?>" name="frm1" method="post">
      <p>Please wait.......</p>
      <input type="hidden" name="signature" value='<?php echo $signature; ?>'/>
      <input type="hidden" name="orderNote" value='<?php echo $orderNote; ?>'/>
      <input type="hidden" name="orderCurrency" value='<?php echo $orderCurrency; ?>'/>
      <input type="hidden" name="customerName" value='<?php echo $customerName; ?>'/>
      <input type="hidden" name="customerEmail" value='<?php echo $customerEmail; ?>'/>
      <input type="hidden" name="customerPhone" value='<?php echo $customerPhone; ?>'/>
      <input type="hidden" name="orderAmount" value='<?php echo $orderAmount; ?>'/>
      <input type ="hidden" name="notifyUrl" value='<?php echo $notifyUrl; ?>'/>
      <input type ="hidden" name="returnUrl" value='<?php echo $returnUrl; ?>'/>
      <input type="hidden" name="appId" value='<?php echo $appId; ?>'/>
      <input type="hidden" name="orderId" value='<?php echo $orderId; ?>'/>
  </form>
</body>
</html>

response.php

<!DOCTYPE html>
<html>
<head>
	<title>Cashfree - PG Response Details</title>
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
	<h1 align="center">PG Response</h1>	

	<?php  
		 $secretkey = "f752ab8ef692fdbb444a73193e2e781145efc629";
		 $orderId = $_POST["orderId"];
		 $orderAmount = $_POST["orderAmount"];
		 $referenceId = $_POST["referenceId"];
		 $txStatus = $_POST["txStatus"];
		 $paymentMode = $_POST["paymentMode"];
		 $txMsg = $_POST["txMsg"];
		 $txTime = $_POST["txTime"];
		 $signature = $_POST["signature"];
		 $data = $orderId.$orderAmount.$referenceId.$txStatus.$paymentMode.$txMsg.$txTime;
		 $hash_hmac = hash_hmac('sha256', $data, $secretkey, true) ;
		 $computedSignature = base64_encode($hash_hmac);
		 if ($signature == $computedSignature) {
	 ?>
	<div class="container"> 
	<div class="panel panel-success">
	  <div class="panel-heading">Signature Verification Successful</div>
	  <div class="panel-body">
	  	<!-- <div class="container"> -->
	 		<table class="table table-hover">
			    <tbody>
			      <tr>
			        <td>Order ID</td>
			        <td><?php echo $orderId; ?></td>
			      </tr>
			      <tr>
			        <td>Order Amount</td>
			        <td><?php echo $orderAmount; ?></td>
			      </tr>
			      <tr>
			        <td>Reference ID</td>
			        <td><?php echo $referenceId; ?></td>
			      </tr>
			      <tr>
			        <td>Transaction Status</td>
			        <td><?php echo $txStatus; ?></td>
			      </tr>
			      <tr>
			        <td>Payment Mode </td>
			        <td><?php echo $paymentMode; ?></td>
			      </tr>
			      <tr>
			        <td>Message</td>
			        <td><?php echo $txMsg; ?></td>
			      </tr>
			      <tr>
			        <td>Transaction Time</td>
			        <td><?php echo $txTime; ?></td>
			      </tr>
			    </tbody>
			</table>
		<!-- </div> -->

	   </div>
	</div>
	</div>
	 <?php   
	  	} else {
	 
	 ?>
	<div class="container"> 
	<div class="panel panel-danger">
	  <div class="panel-heading">Signature Verification failed</div>
	  <div class="panel-body">
	  	<!-- <div class="container"> -->
	 		<table class="table table-hover">
			    <tbody>
			      <tr>
			        <td>Order ID</td>
			        <td><?php echo $orderId; ?></td>
			      </tr>
			      <tr>
			        <td>Order Amount</td>
			        <td><?php echo $orderAmount; ?></td>
			      </tr>
			      <tr>
			        <td>Reference ID</td>
			        <td><?php echo $referenceId; ?></td>
			      </tr>
			      <tr>
			        <td>Transaction Status</td>
			        <td><?php echo $txStatus; ?></td>
			      </tr>
			      <tr>
			        <td>Payment Mode </td>
			        <td><?php echo $paymentMode; ?></td>
			      </tr>
			      <tr>
			        <td>Message</td>
			        <td><?php echo $txMsg; ?></td>
			      </tr>
			      <tr>
			        <td>Transaction Time</td>
			        <td><?php echo $txTime; ?></td>
			      </tr>
			    </tbody>
			</table>
		<!-- </div> -->
	  </div>	
	</div>	
	</div>
	
	<?php	
	 	}
	 ?>

</body>
</html>