This tutorial about generating the image from the HTML. You can just create the HTML and put this code after your code and it will generate the image from your HTML. below is the easy step to generate the image from custom HTML.

Step 1)

Create one php file like index.php as below

<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Html To Image</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"> </script>
<script src="https://files.codepedia.info/files/uploads/iScripts/html2canvas.js"> </script>
<div class="bingo-box bingo-green generatedata" id="generatedata1" data-id="1">
<div class="number-row number-row1">
<div class="number number1">1</div>
<div class="number number2">2</div>
<div class="number number4">4</div>
<div class="number number5">5</div>
<div class="number number5">9</div>
</div>
</div>
<script>
        $(document).ready(function() {
            var getCanvas;
            $( ".generatedata" ).each(function( index ) {
                var dataid = $( this ).attr("id");
                var catid = $( this ).data("id");
                var datafid = parseInt(index) + parseInt(1);
                var element = $("#"+dataid);
                html2canvas(element, {
                    onrendered: function(canvas) {
                        getCanvas = canvas;
                        var imgageData = getCanvas.toDataURL("image/png");
                        var newData = imgageData.replace(/^data:image\/png/, "data:application/octet-stream");
                        $.ajax({
                          type: "POST",
                          url: "upload.php",
                          data: {
                             imgBase64: newData
                          }
                        }).done(function(o) {
                          console.log('saved');
                        });
                    }
                });
            });
        });
    </script>

Step 2)

Create another page like upload.php

<?php
$catid = $_POST['catid'];
$folderPath = "upload_img/";
$image_parts = explode(";base64,", $_POST['imgBase64']);
$image_type_aux = explode("image/", $image_parts[0]);
$image_type = $image_type_aux[1];
$image_base64 = base64_decode($image_parts[1]);
$filename = uniqid() . '.png';
$file = $folderPath . $filename;
file_put_contents($file, $image_base64);
?>

Step 3)

Now Just run index.php file to your browser this will generate the image in folder.