I am going to explain How to Integrate Payumoney Payment Gateway in Laravel 5. Most of thing are already in PayU documentation i am just going to explain it in step so you will easily integrate without reading whole document. In this example i have all value write static in input box. You may also like How to Integrate Payumoney Payment Gateway in PHP and How to integrate Paypal payment gateway using Laravel 5.

Steps For How to Integrate Payumoney Payment Gateway in Laravel 5

Step 1. Create Payumoney account

Go to http://payumoney.com/ and sign up as a merchant account.

Step 2. At time of sign up use your valid email.

Step 3. Fill all required business details.

Step 4. Add your bank detail.

Step 5. Create route in laravel

We are required only three route to call controller.

Route::get('subscribe-process', [
    'as' => 'subscribe-process',
    'uses' => 'SigninController@SubscribProcess'
]);


Route::get('subscribe-cancel', [
    'as' => 'subscribe-cancel',
    'uses' => 'SigninController@SubscribeCancel'
]);

Route::get('subscribe-response', [
    'as' => 'subscribe-response',
    'uses' => 'SigninController@SubscribeResponse'
]);

Step 6. SigninController with SubscribProcess function

In this step load view page.

public function SubscribProcess()
{
    return view('payumoney');
}

Step 7. View page (payumoney.blade.php)

<?php

    $MERCHANT_KEY = ""; // add your id
    $SALT = ""; // add your id

    //$PAYU_BASE_URL = "https://test.payu.in";
    $PAYU_BASE_URL = "https://secure.payu.in";
    $action = '';
    $txnid = substr(hash('sha256', mt_rand() . microtime()), 0, 20);
    $posted = array();
    $posted = array(
        'key' => $MERCHANT_KEY,
        'txnid' => $txnid,
        'amount' => 1000,
        'firstname' => Auth::user()->name,
        'email' => Auth::user()->email,
        'productinfo' => 'PHP Project Subscribe',
        'surl' => 'http://bladephp.co/subscribe-response/',
        'furl' => 'http://bladephp.co/subscribe-cancel/',
        'service_provider' => 'payu_paisa',
    );

    if(empty($posted['txnid'])) {
        $txnid = substr(hash('sha256', mt_rand() . microtime()), 0, 20);
    } 
    else 
    {
        $txnid = $posted['txnid'];
    }
    
    $hash = '';
    $hashSequence = "key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5|udf6|udf7|udf8|udf9|udf10";
    
    if(empty($posted['hash']) && sizeof($posted) > 0) {
        $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';
    }

?>
<html>
  <head>
  <script>
    var hash = '<?php echo $hash ?>';
    function submitPayuForm() {
      if(hash == '') {
        return;
      }
      var payuForm = document.forms.payuForm;
           payuForm.submit();
    }
  </script>
  </head>
  <body onload="submitPayuForm()">
    Processing.....
        <form action="<?php echo $action; ?>" method="post" name="payuForm"><br />
            <input type="hidden" name="key" value="<?php echo $MERCHANT_KEY ?>" /><br />
            <input type="hidden" name="hash" value="<?php echo $hash ?>"/><br />
            <input type="hidden" name="txnid" value="<?php echo $txnid ?>" /><br />
            <input type="hidden" name="amount" value="1000" /><br />
            <input type="hidden" name="firstname" id="firstname" value="<?=Auth::user()->name?>" /><br />
            <input type="hidden" name="email" id="email" value="<?=Auth::user()->email?>" /><br />
            <input type="hidden" name="productinfo" value="PHP Project Subscribe"><br />
            <input type="hidden" name="surl" value="http://bladephp.co/subscribe-response/" /><br />
            <input type="hidden" name="furl" value="http://bladephp.co/subscribe-cancel/" /><br />
            <input type="hidden" name="service_provider" value="payu_paisa"  /><br />
            <?php
            if(!$hash) { ?>
                <input type="submit" value="Submit" />
            <?php } ?>
        </form>
  </body>
</html>

Step 8. SigninController with SubscribeResponse function

public function Response(Request $request)
{
    dd('Payment Successfully done!');
}

Step 9. SigninController with SubscribeCancel function

public function SubscribeCancel()
{
     dd('Payment Cancel!');
}