Naveen,
Here is how you can display MySQL data in CanvasJS,
1. Create a PHP service that returns data in JSON format.
2. HTML page that does AJAX request to the server and fetches the data. After getting the data, it renders a Chart.
Below is the sample code
1. PHP Service to return JSON Data
<?php
header('Content-Type: application/json');
$con = mysqli_connect("127.0.0.1","user","password","canvasjssampledb");
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to DataBase: " . mysqli_connect_error();
}else
{
$data_points = array();
$result = mysqli_query($con, "SELECT * FROM sales");
while($row = mysqli_fetch_array($result))
{
$point = array("label" => $row['product'] , "y" => $row['total_sales']);
array_push($data_points, $point);
}
echo json_encode($data_points, JSON_NUMERIC_CHECK);
}
mysqli_close($con);
?>
2. HTML Page to Fetch Data and render Chart
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title></title>
<script src="jquery.js"></script>
<script src="canvasjs.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$.getJSON("data.php", function (result) {
var chart = new CanvasJS.Chart("chartContainer", {
data: [
{
dataPoints: result
}
]
});
chart.render();
});
});
</script>
</head>
<body>
<div id="chartContainer" style="width: 800px; height: 380px;"></div>
</body>
</html>
