Pie chart sample
Source Code
<?php
include "libchart/classes/libchart.php";
header("Content-type: image/png");
$chart = new PieChart(500, 260);
$dataSet = new XYDataSet();
$dataSet->addPoint(new Point("Mozilla Firefox (80)", 80));
$dataSet->addPoint(new Point("Konqueror (75)", 75));
$dataSet->addPoint(new Point("Other (50)", 50));
$chart->setDataSet($dataSet);
$chart->setTitle("User agents for www.example.com");
$chart->render();
?>