Tuesday, April 03 2018

Payumoney Payment Gateway Integration in PHP

How to implement payumoney payment gateway integration in php. PayUMoney is one of known payment gateway in India. It is a zero setup cost and easy to use in your applications. It support all the PHP frameworks as well as API too.
They have a clear documentation with developer guide. We can easily create a merchant account in PayU Money. Once you create and change the account from live to test mode. Then you got the test and live merchant keys. Copy those credentials. Go to developer documentation, they provide client side and server side scripts. You may use any one of that in your page. Download sample script of Payu Money Integration in PHP.

See Our Demo Video on Youtube

Below the Lists of steps to start to integrating PayU Money in your applications.

Step 1:

Create a account in Payu Money click here

Step 2:

Activate your account. Once you logged change your account from LIVE MODE to TEST MODE

Step 3:

Get your test merchant account details.

payumoney-integration-in-php

Step 4:

Create a form.php and copy the below HTML code and paste it.

<form action="" method="post" name="payuForm">
      <input type="hidden" name="key" value="<?php echo $MERCHANT_KEY ?>" />
      <input type="hidden" name="hash" value="<?php echo $hash ?>"/>
      <input type="hidden" name="txnid" value="<?php echo $txnid ?>" />
      <table>
        <tr>
          <td><b>Mandatory Parameters</b></td>
        </tr>
        <tr>
          <td>Amount: </td>
          <td><input name="amount" value="<?php echo (empty($posted['amount'])) ? '' : $posted['amount'] ?>" /></td>
          <td>First Name: </td>
          <td><input name="firstname" id="firstname" value="<?php echo (empty($posted['firstname'])) ? '' : $posted['firstname']; ?>" /></td>
        </tr>
        <tr>
          <td>Email: </td>
          <td><input name="email" id="email" value="<?php echo (empty($posted['email'])) ? '' : $posted['email']; ?>" /></td>
          <td>Phone: </td>
          <td><input name="phone" value="<?php echo (empty($posted['phone'])) ? '' : $posted['phone']; ?>" /></td>
        </tr>
        <tr>
          <td>Product Info: </td>
          <td colspan="3"><textarea name="productinfo"><?php echo (empty($posted['productinfo'])) ? '' : $posted['productinfo'] ?></textarea></td>
        </tr>
        <tr>
          <td>Success URI: </td>
          <td colspan="3"><input name="surl" value="<?php echo (empty($posted['surl'])) ? '' : $posted['surl'] ?>" size="64" /></td>
        </tr>
        <tr>
          <td>Failure URI: </td>
          <td colspan="3"><input name="furl" value="<?php echo (empty($posted['furl'])) ? '' : $posted['furl'] ?>" size="64" /></td>
        </tr>

        <tr>
          <td colspan="3"><input type="hidden" name="service_provider" value="payu_paisa" size="64" /></td>
        </tr>

        <tr>
          <td><b>Optional Parameters</b></td>
        </tr>
        <tr>
          <td>Last Name: </td>
          <td><input name="lastname" id="lastname" value="<?php echo (empty($posted['lastname'])) ? '' : $posted['lastname']; ?>" /></td>
          <td>Cancel URI: </td>
          <td><input name="curl" value="" /></td>
        </tr>
        <tr>
          <td>Address1: </td>
          <td><input name="address1" value="<?php echo (empty($posted['address1'])) ? '' : $posted['address1']; ?>" /></td>
          <td>Address2: </td>
          <td><input name="address2" value="<?php echo (empty($posted['address2'])) ? '' : $posted['address2']; ?>" /></td>
        </tr>
        <tr>
          <td>City: </td>
          <td><input name="city" value="<?php echo (empty($posted['city'])) ? '' : $posted['city']; ?>" /></td>
          <td>State: </td>
          <td><input name="state" value="<?php echo (empty($posted['state'])) ? '' : $posted['state']; ?>" /></td>
        </tr>
        <tr>
          <td>Country: </td>
          <td><input name="country" value="<?php echo (empty($posted['country'])) ? '' : $posted['country']; ?>" /></td>
          <td>Zipcode: </td>
          <td><input name="zipcode" value="<?php echo (empty($posted['zipcode'])) ? '' : $posted['zipcode']; ?>" /></td>
        </tr>
        <tr>
          <td>UDF1: </td>
          <td><input name="udf1" value="<?php echo (empty($posted['udf1'])) ? '' : $posted['udf1']; ?>" /></td>
          <td>UDF2: </td>
          <td><input name="udf2" value="<?php echo (empty($posted['udf2'])) ? '' : $posted['udf2']; ?>" /></td>
        </tr>
        <tr>
          <td>UDF3: </td>
          <td><input name="udf3" value="<?php echo (empty($posted['udf3'])) ? '' : $posted['udf3']; ?>" /></td>
          <td>UDF4: </td>
          <td><input name="udf4" value="<?php echo (empty($posted['udf4'])) ? '' : $posted['udf4']; ?>" /></td>
        </tr>
        <tr>
          <td>UDF5: </td>
          <td><input name="udf5" value="<?php echo (empty($posted['udf5'])) ? '' : $posted['udf5']; ?>" /></td>
          <td>PG: </td>
          <td><input name="pg" value="<?php echo (empty($posted['pg'])) ? '' : $posted['pg']; ?>" /></td>
        </tr>
        <tr>
          <?php if(!$hash) { ?>
            <td colspan="4"><input type="submit" value="Submit" /></td>
          <?php } ?>
        </tr>
      </table>
    </form>

Step 5:

In form.php server side code and paste the code in above html code.

$MERCHANT_KEY = "YOYR_MERCHANT_KEY";
$SALT = "YOYR_SALT_KEY";
// Merchant Key and Salt as provided by Payu.

$PAYU_BASE_URL = "https://sandboxsecure.payu.in";		// For Sandbox Mode
//$PAYU_BASE_URL = "https://secure.payu.in";			// For Production Mode

$action = '';

$posted = array();
if(!empty($_POST)) {
    //print_r($_POST);
  foreach($_POST as $key => $value) {    
    $posted[$key] = $value; 
	
  }
}

$formError = 0;

if(empty($posted['txnid'])) {
  // Generate random transaction id
  $txnid = substr(hash('sha256', mt_rand() . microtime()), 0, 20);
} else {
  $txnid = $posted['txnid'];
}
$hash = '';
// Hash Sequence
$hashSequence = "key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5|udf6|udf7|udf8|udf9|udf10";
if(empty($posted['hash']) && sizeof($posted) > 0) {
  if(
          empty($posted['key'])
          || empty($posted['txnid'])
          || empty($posted['amount'])
          || empty($posted['firstname'])
          || empty($posted['email'])
          || empty($posted['phone'])
          || empty($posted['productinfo'])
          || empty($posted['surl'])
          || empty($posted['furl'])
		  || empty($posted['service_provider'])
  ) {
    $formError = 1;
  } else {
    //$posted['productinfo'] = json_encode(json_decode('[{"name":"tutionfee","description":"","value":"500","isRequired":"false"},{"name":"developmentfee","description":"monthly tution fee","value":"1500","isRequired":"false"}]'));
	$hashVarsSeq = explode('|', $hashSequence);
    $hash_string = '';	
	foreach($hashVarsSeq as $hash_var) {
      $hash_string .= isset($posted[$hash_var]) ? $posted[$hash_var] : '';
      $hash_string .= '|';
    }

    $hash_string .= $SALT;


    $hash = strtolower(hash('sha512', $hash_string));
    $action = $PAYU_BASE_URL . '/_payment';
  }
} elseif(!empty($posted['hash'])) {
  $hash = $posted['hash'];
  $action = $PAYU_BASE_URL . '/_payment';
}

Step 6:

In success.php file and get response from PayU Money.

$status=$_POST["status"];
$firstname=$_POST["firstname"];
$amount=$_POST["amount"];
$txnid=$_POST["txnid"];
$posted_hash=$_POST["hash"];
$key=$_POST["key"];
$productinfo=$_POST["productinfo"];
$email=$_POST["email"];
$salt="";

// Salt should be same Post Request 

If (isset($_POST["additionalCharges"])) {
       $additionalCharges=$_POST["additionalCharges"];
        $retHashSeq = $additionalCharges.'|'.$salt.'|'.$status.'|||||||||||'.$email.'|'.$firstname.'|'.$productinfo.'|'.$amount.'|'.$txnid.'|'.$key;
  } else {
        $retHashSeq = $salt.'|'.$status.'|||||||||||'.$email.'|'.$firstname.'|'.$productinfo.'|'.$amount.'|'.$txnid.'|'.$key;
         }
		 $hash = hash("sha512", $retHashSeq);
       if ($hash != $posted_hash) {
	       echo "Invalid Transaction. Please try again";
		   } else {
          echo "<h3>Thank You. Your order status is ". $status .".</h3>";
          echo "<h4>Your Transaction ID for this transaction is ".$txnid.".</h4>";
          echo "<h4>We have received a payment of Rs. " . $amount . ". Your order will soon be shipped.</h4>";
		   }

Step 7:

In failure.php file and get response from PayU Money.

$status=$_POST["status"];
$firstname=$_POST["firstname"];
$amount=$_POST["amount"];
$txnid=$_POST["txnid"];

$posted_hash=$_POST["hash"];
$key=$_POST["key"];
$productinfo=$_POST["productinfo"];
$email=$_POST["email"];
$salt="";

// Salt should be same Post Request 

If (isset($_POST["additionalCharges"])) {
       $additionalCharges=$_POST["additionalCharges"];
        $retHashSeq = $additionalCharges.'|'.$salt.'|'.$status.'|||||||||||'.$email.'|'.$firstname.'|'.$productinfo.'|'.$amount.'|'.$txnid.'|'.$key;
  } else {
        $retHashSeq = $salt.'|'.$status.'|||||||||||'.$email.'|'.$firstname.'|'.$productinfo.'|'.$amount.'|'.$txnid.'|'.$key;
         }
		 $hash = hash("sha512", $retHashSeq);
  
       if ($hash != $posted_hash) {
	       echo "Invalid Transaction. Please try again";
		   } else {
         echo "<h3>Your order status is ". $status .".</h3>";
         echo "<h4>Your transaction id for this transaction is ".$txnid.". You may try making the payment by clicking the link below.</h4>";
		 } 

Step 8:

Final step in success.php get the transaction id and other details are need to save into transaction_history table.

Thanks for reading this article. If you found any issues please comment below and will discuss it.

 

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