Hi asgallant, I have been trying to use display the pie chart using data 
from mysql. But the problem is that the chart was not display when i use 
ajax.
However if i use the output from the getData.php i was able to display the 
chart.



<html>
<head>
<!--Load the AJAX API -->
<script type="text/javascript" src="http://www.google.com/jsapi";></script>
<script 
src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"; 
type="text/javascript"></script>

<script type="text/javascript">

function drawChart(){
  var jsonData =$.ajax({
url:"getData.php",
        dataType:"json",
        async:false
        }).responseText;

  /* 
{"cols":[{"label":"Quantity","type":"number"},{"label":"Product","type":"string"}],"rows":[{"c":[{"v":7},{"v":"Y-2832"}]},{"c":[{"v":2},{"v":"Y-2832"}]},{"c":[{"v":6},{"v":"Y-2832"}]},{"c":[{"v":6},{"v":"Y-2832"}]},{"c":[{"v":2},{"v":"Y-2832"}]},{"c":[{"v":2},{"v":"Y-2832"}]},{"c":[{"v":4},{"v":"Y-2832"}]},{"c":[{"v":4},{"v":"Y-1000"}]}]}*/

//Create our data table out of JSON data loaded from server
var data=new google.visualization.DataTable(jsonData);
//PieCharts expects 2 columns of data: a label and a value, so we need to 
use a DataView to restrict to 2 columns
var view=new google.visualization.DataView(data);


//Instantiate and draw our chart, passing in some options
var chart=new 
google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(view,{width:400,height:240});

}

//Load the visualization API and the piechart package
google.load('visualization','1',{'packages':['corechart']});

//Set a callback to run when the google visualization API is loaded
google.setOnLoadCallback(drawChart);

</script>
</head>

<body>
        <!--Div that will hold the pie chart -->
        <div id="chart_div"></div>
</body>
</html>

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