Demo magic methods set_state, clone và debugInfo trong PHP Live code

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Toidicode.com Background</title>
</head>
<style type="text/css">
    .se-pre-con{
    	position: fixed;
        left: 0px;
        top: 0px;
        width: 100%;
        height: 100%;
        z-index: 9999;
    }
</style>
<body>
  <div class="se-pre-con" id="se-pre-con" style=""></div>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
  <script type="text/javascript">
  	$(window).load(function () {
            $(".se-pre-con").fadeOut("slow");;
        });
        $(function () {
            var images = ['Preloader_1.GIF', 'Preloader_2.GIF', 'Preloader_3.GIF', 'Preloader_8.GIF', 'Preloader_10.GIF', 'Preloader_11.GIF'];
            $('#se-pre-con').css({
                'background': 'url(http://sv.qlcl.edu.vn/vnkResource/css/' + images[Math.floor(Math.random() * images.length)] + ')' + 'center no-repeat #fff', 'position': 'fixed', 'left': '0px', 'top': '0px', 'width': '100%', 'height': '100%', 'z-index': '9999'
            });
        });
  </script>

</body>
</html>