Vertical bar chart sample
Source Code
<?php
include "libchart/classes/libchart.php";
header("Content-type: image/png");
$chart = new VerticalBarChart(500,250);
$dataSet = new XYDataSet();
$dataSet->addPoint(new Point("Jan 2005", 273));
$dataSet->addPoint(new Point("Feb 2005", 321));
$dataSet->addPoint(new Point("March 2005", 442));
$dataSet->addPoint(new Point("April 2005", 711));
$chart->setDataSet($dataSet);
$chart->setTitle("Monthly usage for www.example.com");
$chart->render();
?>