This is my code:
<html>
<?php
mysql_connect("localhost","root","");
mysql_select_db("sperformance");
$query="SELECT * FROM stud_details WHERE email='[email protected]'";
$result = mysql_query($query) or die ("Error in query: $query.
".mysql_error());
while($row = mysql_fetch_row($result)) {
?>
<head>
<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([
['x', 'CGPA' ],
['Semester 1', <?php echo $row[1] ?> ],
['Semester 2', <?php echo $row[2] ?> ],
['Semester 3', <?php echo $row[3] ?> ],
['Semester 4', <?php echo $row[4] ?> ],
['Semester 5', <?php echo $row[5] ?> ],
['Semester 6', <?php echo $row[6] ?> ],
['Semester 7', <?php echo $row[7] ?> ],
['Semester 8', <?php echo $row[8] ?> ],
['Semester 9', <?php echo $row[9] ?> ],
['Semester 10', <?php echo $row[10] ?> ],
['Semester 11', <?php echo $row[11] ?> ],
['Semester 12', <?php echo $row[12] ?> ],
]);
var options = {
title: 'Student Performance'
};
var chart = new
google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="chart_div" style="width: 1300px; height: 500px;"></div>
</body>
<?php
}
?>
</html>
I don't know why the graph did not appear. Anyone can help me? Thank you.
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