How to handel success response in payubiz in surl? : in adnroid side i am getting marchent data : null. 
How to show success result in App side.after successfully payment  payu server return some response that response is in $_POST
    $result = '';
    foreach($_POST as $key=> $value){

	    $result .= $key . '=' . $value . ',';
	    $input = rtrim($result , ','); 
    }
    echo "<html>
	    <head>
	        <meta http-equiv='Content-Type' content='text/html; charset=UTF-8'>
	        <script type='text/javascript'>
	        	function AndroidSuccess()
        		{ 
    				PayU.onSuccess('status=success'); 
    			} 
    			AndroidSuccess($input);

			</script>
	     </head>
	      <body>
	        </body>
	</html>";