Populating amchart dynamically fetching data from mysql - mysql

Question

I am trying to fetch records from mysql and render the data via amchart, but I am facing difficulty in doing so. I have written the following code which is not working. The query works fine but the problem is replacing the static (placeholder) data with the results of the query. Please suggest.
{
$selectdata="SELECT member_lhp, COUNT( * ) AS 'land_pattern' FROM hh_basic_info GROUP BY member_lhp";
$resdata=mysql_query($selectdata);
<script type="text/javascript">
var chart;
var chartData = [
<?php
$count=0;
while($rowdata = mysql_fetch_assoc($resdata))
foreach($rowdata as $rows){
$type= $rows['member_lhp'];
$lp=$rows['land_pattern'];
if($count++ > 0) echo ',';
?>
{
year: <?php echo $type;?>,
income: <?php echo $lp;?>
},
<?php } ?>
];
AmCharts.ready(function () {
// SERIAL CHART
chart = new AmCharts.AmSerialChart();
chart.dataProvider = chartData;
chart.categoryField = "year";
// this single line makes the chart a bar chart,
// try to set it to false - your bars will turn to columns
chart.rotate = true;
// the following two lines makes chart 3D
chart.depth3D = 20;
chart.angle = 30;
// AXES
// Category
var categoryAxis = chart.categoryAxis;
categoryAxis.gridPosition = "start";
categoryAxis.axisColor = "#DADADA";
categoryAxis.fillAlpha = 1;
categoryAxis.gridAlpha = 0;
categoryAxis.fillColor = "#FAFAFA";
// value
var valueAxis = new AmCharts.ValueAxis();
valueAxis.axisColor = "#DADADA";
valueAxis.title = "Villagers - Land holding pattern";
valueAxis.gridAlpha = 0.1;
chart.addValueAxis(valueAxis);
// GRAPH
var graph = new AmCharts.AmGraph();
graph.title = "Income";
graph.valueField = "income";
graph.type = "column";
graph.balloonText = "Land holding number in [[category]]:[[value]]";
graph.lineAlpha = 0;
graph.fillColors = "#bf1c25";
graph.fillAlphas = 1;
chart.addGraph(graph);
// WRITE
chart.write("chartdiv");
});
</script>
}

Answer 1

At a quick glance it looks like you may have included an extra comma after your curly bracket. You are already adding a comma via the PHP if your count is greater than 0 so this would have been introducing a second, unnecessary one between each group of data.
You had the following...
{
year: <?php echo $type;?>,
income: <?php echo $lp;?>
},
try just having this instead...
{
year: <?php echo $type;?>,
income: <?php echo $lp;?>
}

Answer 2

It seems you forgot to parse in json format,
Just write
var newchartData= JSON.parse(chartData);
now assign newcharData to DataProvider,it should work.