[SOLVED] Use php variable in google pie chart

Use php variable in google pie chart

I want to use my PHP variable in Google chart,but the chart couldn't read my PHP tag. As you can see the code below I put my PHP variable in the script. (The PHP variable I have defined at top of the code and the result is correct). What's wrong with my code ? Is there any solution for this ? Do ask me for more information if needed. Thank you.

<script type="text/javascript">
  google.charts.load('current', {'packages':['corechart']});
  google.charts.setOnLoadCallback(drawChart);
  function drawChart() {

    var data = google.visualization.arrayToDataTable([
      ['Order', 'Amount'],
      ['Completed',     '<?php echo$completed ?>'],
      ['New',      '<?php echo$new ?>']
    ]); 

    var options = {
      title: 'Total Order ' + <?php echo$total; ?>
    };

    var chart = new google.visualization.PieChart(document.getElementById('piechart'));

    chart.draw(data, options);
  }
</script>

Solution

Working Example.

<?php 
$completed = 50;
$new = 10;
$total = 30;
?>
<html>
    <head>
        <!--Load the AJAX API-->
        <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
        <script type="text/javascript">


            google.charts.load('current', {'packages':['corechart']});
            google.charts.setOnLoadCallback(drawChart);
            function drawChart() {

                var data = google.visualization.arrayToDataTable([
                    ['Order', 'Amount'],
                        ['Completed', parseInt('<?php echo $completed; ?>')],
                        ['New',       parseInt('<?php echo $new; ?>')]
                ]); 

                var options = {
                    title: 'Total Order ' + <?php echo$total; ?>
                };

                    var chart = new google.visualization.PieChart(document.getElementById('piechart'));

                    chart.draw(data, options);
                }

        </script>
    </head>

    <body>
        <div id="piechart"></div>
    </body>
</html>