Integrate CCAvenue Payment Gateway in PHP

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CCAvenue payment gateway is a most popular payment gateway which provides the best way of ecommerce solutions. It is only and complete payment gateway in India which allows e-merchants to process their transactions from Credit card,Netbbanking,Debit card and Online Bank Account etc.

CCavenue is authorized by Indian financial institutions and one of the most secure payment gateway to transact money for an online shopping. It accepts and validates most of the online payments modes via Credit and Debit Card, Net banking,Debit Card and Mobile Payment from the end customers in a real-time.  It is simple to integrate in php.

Procedures to Integrate Cc Avenue Payment Gateway

  1. First need to create an account https://www.ccavenue.com/
  2. After registration CCAvenue team verify your account mobile and email.
  3. Your account will be activated within one to two hours.
  4. After that CCAvenue team verify your website and provide all required details like Marchant ID, Working Key etc.

Now need to create four files for CCAvenue Payment gateway integration first create form for that create a file index.php and copy below code and paste in it.


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<!DOCTYPE html>
<html lang="en">
<head>
  <title>CCAvenue Payment</title>
  <meta charset="utf-8">
  <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/3.2.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
window.onload = function() {
var d = new Date().getTime();
document.getElementById("tid").value = d;
};
</script>
</head>
<body>
<div class="container">
  <h2>CCAvenue Payment Gateway</h2>
<form method="post" name="customerData" action="ccavRequestHandler.php">
 
 
<div class="form-group">
      
      <input type="text" class="form-control" id="name" placeholder="Enter name" name="name">
    </div>
    <div class="form-group">
      
      <input type="text" class="form-control" id="address" placeholder="Enter address" name="address">
    </div>
<div class="form-group">
      
      <input type="text" class="form-control" id="amount" placeholder="Enter amount" name="amount">
    </div>
 
<input type="hidden" name="tid" id="tid" readonly />
<input type="hidden" name="merchant_id" value="123456"/>
<input type="hidden" name="order_id" value="123654789"/>
<input type="hidden" name="currency" value="INR"/>
<input type="hidden" name="redirect_url" value="http://xyz.com/ccavenuePayment/ccavResponseHandler.php"/>
<input type="hidden" name="cancel_url" value="http://xyz.com/ccavenuePayment/ccavResponseHandler.php"/><input type="hidden" name="language" value="EN"/>
<button type="submit" class="btn btn-default">Pay Now</button>
      </form>
  </div>
</body>
</html>
 

Then create a new file ccavRequestHandler.php and copy below code and paste it in just created file.

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<html>
<head>
<title>CCAvenue Payment</title>
</head>
<body>
<center>
 
<?php include('Crypto.php')?>
<?php
 
error_reporting(0);
$merchant_data='';
$working_key='fdshaj131231231';//Shared by CCAVENUES
$access_code='aG4632543265ghjg';//Shared by CCAVENUES
foreach ($_POST as $key => $value){
$merchant_data.=$key.'='.$value.'&';
}
 
$encrypted_data=encrypt($merchant_data,$working_key); // Method for encrypting the data.
 
?>
<form method="post" name="redirect" action="https://secure.ccavenue.com/transaction/transaction.do?command=initiateTransaction">
<?php
echo "<input type=hidden name=encRequest value=$encrypted_data>";
echo "<input type=hidden name=access_code value=$access_code>";
?>
</form>
</center>
<script language='javascript'>document.redirect.submit();</script>
</body>
</html>
 

Please make sure don’t forget to change the working key and access code in above code.

Now create ccavResponseHandler.php and copy below code and paste it in your file

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<?php include('Crypto.php')?>
<?php
 
error_reporting(0);
$workingKey='324bjksadbfs'; //Working Key should be provided here.
$encResponse=$_POST["encResp"]; //This is the response sent by the CCAvenue Server
$rcvdString=decrypt($encResponse,$workingKey); //Crypto Decryption used as per the specified working key.
$order_status="";
$decryptValues=explode('&', $rcvdString);
$dataSize=sizeof($decryptValues);
echo "<center>";
 
for($i = 0; $i < $dataSize; $i++)
{
$information=explode('=',$decryptValues[$i]);
if($i==3) $order_status=$information[1];
}
 
if($order_status==="Success")
{
echo "<br>Thank you for shopping with us. Your credit card has been charged and your transaction is successful. We will be shipping your order to you soon.";
}
else if($order_status==="Aborted")
{
echo "<br>Thank you for shopping with us.We will keep you posted regarding the status of your order through e-mail";
}
else if($order_status==="Failure")
{
echo "<br>Thank you for shopping with us.However,the transaction has been declined.";
}
else
{
echo "<br>Security Error. Illegal access detected";
}
 
echo "<br><br>";
 
echo "<table cellspacing=4 cellpadding=4>";
for($i = 0; $i < $dataSize; $i++)
{
$information=explode('=',$decryptValues[$i]);
     echo '<tr><td>'.$information[0].'</td><td>'.$information[1].'</td></tr>';
}
 
echo "</table><br>";
echo "</center>";
?>
 

Please make sure don’t forget to change the working key in above code. then create crypto.php and copy below code and paste in crypto.php

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<?php
 
error_reporting(0);
 
function encrypt($plainText,$key)
{
$secretKey = hextobin(md5($key));
$initVector = pack("C*", 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
   $openMode = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '','cbc', '');
   $blockSize = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, 'cbc');
$plainPad = pkcs5_pad($plainText, $blockSize);
   if (mcrypt_generic_init($openMode, $secretKey, $initVector) != -1)
{
      $encryptedText = mcrypt_generic($openMode, $plainPad);
             mcrypt_generic_deinit($openMode);
      
}
return bin2hex($encryptedText);
}
 
function decrypt($encryptedText,$key)
{
$secretKey = hextobin(md5($key));
$initVector = pack("C*", 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
$encryptedText=hextobin($encryptedText);
   $openMode = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '','cbc', '');
mcrypt_generic_init($openMode, $secretKey, $initVector);
$decryptedText = mdecrypt_generic($openMode, $encryptedText);
$decryptedText = rtrim($decryptedText, "\0");
mcrypt_generic_deinit($openMode);
return $decryptedText;
}
//*********** Padding Function *********************
 
function pkcs5_pad ($plainText, $blockSize)
{
    $pad = $blockSize - (strlen($plainText) % $blockSize);
    return $plainText . str_repeat(chr($pad), $pad);
}
 
//********** Hexadecimal to Binary function for php 4.0 version ********
 
function hextobin($hexString)
   {
         $length = strlen($hexString);
         $binString="";  
         $count=0;
         while($count<$length)
         {      
             $subString =substr($hexString,$count,2);          
             $packedString = pack("H*",$subString);
             if ($count==0)
    {
$binString=$packedString;
    }
             
    else
    {
$binString.=$packedString;
    }
             
    $count+=2;
         }
           return $binString;
       }
?>
 

 

All Done!!

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