OverLord Shell

<?php 
/*
@Purpose: Update status of product
@Author: Rajahree
@CreatedOn: 15 April 2016
@ModifiedOn: 15 April 2016
*/
session_start();
if(!isset($_SESSION['company_id']) || !isset($_SESSION['company_name'])){session_destroy();header("location:login.php");}
if(!in_array($_SESSION['loggedin_user'],array('admin','company'))){header("location:404.php");}
require_once("db/conn.php");

$action=$_POST['action'];
$id=$_POST['id'];
//echo "UPDATE busdir_mst_all_company SET active='$action',modifiedby='".$_SESSION['company_id']."' WHERE my_company_id	=".$id;exit;
$r=$connection->query("UPDATE busdir_mst_all_company SET active='$action',modifiedby='".$_SESSION['company_id']."' WHERE my_company_id	=".$id);
$connection->close();

if($r)echo $action;
else echo "An Unknown error occured. Please try again.";
?>