index.php
               
<!DOCTYPE html>
<html lang="en">
<head>
  <title>TagCash Pay Using Tagcash Demo</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/3.3.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
  <nav class="navbar navbar-inverse" style="border-radius: 0px;">
    <div class="container-fluid">
      <a class="navbar-brand" href="#">
          <img src="images/tagbond_logo.png" height="30" alt="">
        </a>
      <div class="navbar-header" style="padding-left: 220px;">
        <a class="navbar-brand" href="#">
          <img src="http://developer.tagcash.com/code/view/images/tagbond_logo.png" height="30" alt="">
        </a>
      </div>
    </div>
  </nav>
  <div class="container"> 
    <div class="jumbotron" style="padding-top: 10px;">
      <h3>Pay Using Tagcash Demo</h3>
      <hr/>
      <?php session_start(); if($_SESSION["status"] == "Success") { ?>
      <div class="alert alert-success">
        <a href="#" class="close" data-dismiss="alert" aria-label="close">×</a>
        <?php echo $_SESSION["message"];?>.
      </div>
      <?php }else if($_SESSION["status"] == "Failed"){ ?>
      <div class="alert alert-danger">
        <a href="#" class="close" data-dismiss="alert" aria-label="close">×</a>
        <?php echo $_SESSION["message"]; ?>.
      </div>
      <?php } session_destroy();?>
      <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Pay using Tagcash Demo</button>
      <!-- Modal -->
      <div class="modal fade" id="myModal" role="dialog">
        <div class="modal-dialog">
          <!-- Modal content-->
          <div class="modal-content">
            <div class="modal-header">
              <button type="button" class="close" data-dismiss="modal">×</button>
              <h4 class="modal-title">Pay Using Tagcash</h4>
            </div>
            <div class="modal-body">
              <form method="POST" action="pay.php">
                <div class="form-group">
                  <label for="email">Wallet:</label>
                  <select name="wallet" class="form-control" id="sel1" required="">
                    <option value="1">PHP</option>
                    <option value="7">TAG</option>
                  </select>
                </div>
                <div class="form-group">
                  <label for="pwd">Amount:</label>
                  <input type="text" class="form-control" name="amount" id="amount" required="">
                </div>
                <div class="form-group">
                  <label for="pwd">Email/User Id:</label>
                  <input type="text" class="form-control" name="email" id="email" required="">
                </div>
                <div class="form-group">
                  <label for="pwd">Pin:</label>
                  <input type="text" class="form-control" name="pin" id="email" required="">
                </div>
                <button type="submit" class="btn btn-default">Pay Now</button>
              </form>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</body>
</html>
                        
             
           pay.php
              
<?php
 session_start();
 header("Content-Type: application/json; charset=UTF-8");
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, "https://apibeta.tagcash.com/oauth/accesstoken");
 curl_setopt($ch, CURLOPT_HEADER, 0);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch, CURLOPT_POST, 1);
 $data = array(
    "client_id" => "client_id",
    "client_secret" => "client_secret",
    "grant_type" => "client_credentials"
 );
 curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
 $contents = curl_exec($ch);
 $obj = json_decode($contents, false);
 $result = $obj->result;
 $accesstoken = $result->access_token;
 if(!$accesstoken){
    redirect("Failed","Merchant Access Token Is Not Found");
 }
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, "https://apibeta.tagcash.com/wallet/charge");
 curl_setopt($ch, CURLOPT_HEADER, 0);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch, CURLOPT_POST, 1);
 $data = array(
    "access_token" => $accesstoken,
    "amount" => $_POST["amount"],
    "pin" => $_POST["pin"],
    "from_id" => $_POST["email"],
    "wallet_id" => $_POST["wallet"]
 );
 curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
 $contents = curl_exec($ch);
 $contents = json_decode($contents);
 if(isset($contents->error)){
    redirect("Failed","Pay using tagcash failed");
 }
 if(isset($contents->result)){
    redirect("Success","Pay using tagcash done successfully");
 }
 function redirect($status,$message){
    session_start();
    $_SESSION["message"] = $message;
    $_SESSION["status"] = $status;
    header("Location: index.php");
    die();
 }
?>