Transparent Background (Modal Loader)

Quick post. I want to show a loader, that block the whole page and it should not be closeable, while waiting for AJAX response. I use modal and loader image then I set the modal background to transparent.

To do it, I read from this link_1 and link_2.

 
<div class="modal fade" id="loaderModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true" data-backdrop="static" data-keyboard="false">
    <div class="modal-dialog modal-dialog-centered" role="document">
        <div class="modal-content" style="background-color:rgba(0, 0, 0, 0.0);">
            <div class="modal-body">
                //replace with gif loader image
                <div class="loader dual-loader mx-auto"></div>
                <div class="row">
                    <div class="col-xl-12 col-md-12 col-sm-12 col-12" style="text-align:center; color:black">Loading...</div>
                </div>
            </div>
        </div>
    </div>
</div>

Javascript konversi angka ke format rupiah

thanks to faisalman  who provides this incredible javascript. 

Javascript yg membantu kita mengkonversi angka ke format rupiah dan sebaliknya, script yg sangat membantu sekali. Recomended utk di bookmark. Ini linknya

PHP Set session timeout

Quick post. This post will help me to recall how to set a session timeout in PHP someday. Lets cut the explanation what is actually happening behind the scene in PHP for timing out the session. As my other posts, I will put the source where I read this great and helpfull solution. Link. I'd like to thank the dude who wrote that post.

So, I'm still using CodeIgniter and I put this function on my Model for login. So here is my function:

    function session_timeout_check()
    {
        
        $timeout_max = 1800;//timeout after 30 minutes
        $time = $_SERVER['REQUEST_TIME'];

        if(isset($_SESSION['LAST_ACTIVITY']))
        {
            if($time - $_SESSION['LAST_ACTIVITY'] > $timeout_max)
            {
                return 1;
            }
            else
            {
                $_SESSION['LAST_ACTIVITY'] = $_SERVER['REQUEST_TIME'];
                return 0;
            }
        }
        else
        {
            return 1;
        }
    }

I put that function in the constructor of all controller:

    public function __construct()
    {    
        parent::__construct();
        $this->load->model(array("M_login"));
        session_start();
        if($this->M_login->session_timeout_check() == 1)
        {
            //unsetting session variable, destroying session and redirecting to login page
        }
    }

inside the if you can put other conditions to check the session.

so that's all folks.