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Google chart not displaying
Can someone please help me? I'm new with google chart and I don't know why my chart is not displaying
1 Resposta
0
<?php
$con = mysqli_connect('localhost','root','');
mysqli_select_db($con,'occ');
?>
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>
Create Google Charts
</title>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Date', 'Visits'],
<?php
$query = "SELECT count(course) FROM student_registration GROUP BY course";
$exec = mysqli_query($con,$query);
while($row = mysqli_fetch_array($exec)){
echo "['".$row['course']."',".$row['count']."],";
}
?>
]);
var options = {
title: 'Date wise visits'
};
var chart = new google.visualization.ColumnChart(document.getElementById("columnchart"));
chart.draw(data, options);
}
</script>
</head>
<body>
<h3>Column Chart</h3>
<div id="columnchart" style="width: 900px; height: 500px;"></div>
</body>
</html>
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