<?php
require '../lib/GooglePieChart.php';
$chart = new GooglePieChart('p', 130, 100);
$chart->setDataFormat(GoogleChart::SIMPLE_ENCODING);
$data = new GoogleChartData(array(80, -20));
$data->setColor('f9f900');
$chart->addData($data);
// I pass null to enable the "legend" trick
$data = new GoogleChartData(null);
$data->setColor('ffffff');
$data->setLegend('O O O');
$chart->addData($data);
$chart->setLegendPosition('r');
$chart->setRotation(0.628);
if (isset($_GET['debug'])) {
var_dump($chart->getQuery());
echo $chart->validate();
echo $chart->toHtml();
} else {
header('Content-Type: image/png');
echo $chart;
}