Best graph and diagram toolset for PHP [closed]

<?php
/*
 * This work is hereby released into the Public Domain.
 * To view a copy of the public domain dedication,
 * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
 * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
 *
 */

require_once "../../BarPlot.class.php";

$graph = new Graph(450, 400);

$graph->setAntiAliasing(TRUE);

$blue = new Color(0, 0, 200);
$red = new Color(200, 0, 0);

$group = new PlotGroup;
$group->setPadding(40, 40);
$group->setBackgroundColor(
    new Color(240, 240, 240)
);

$values = array(12, 8, 20, 32, 15, 5);

$plot = new BarPlot($values, 1, 2);
$plot->setBarColor($blue);
$plot->setYAxis(Plot::LEFT);

$group->add($plot);
$group->axis->left->setColor($blue);
$group->axis->left->title->set("Blue bars");

$values = array(6, 12, 14, 2, 11, 7);

$plot = new BarPlot($values, 2, 2);
$plot->setBarColor($red);
$plot->setYAxis(Plot::RIGHT);

$group->add($plot);
$group->axis->right->setColor($red);
$group->axis->right->title->set("Red bars");

$graph->add($group);
$graph->draw();
?>

class page_line extends Page {
function init(){
  parent::init();

   $p=$this;

$this->api->template->append('css_include', '<link type="text/css"
  href="./atk4-addons/sterling/jqplot/templates/js/jqplot/jquery.jqplot.css" rel="stylesheet" />'."n");

$this->api->template->append('ie_include','<script type="text/javascript"
  src="./atk4-addons/sterling/jqplot/templates/js/jqplot/excanvas.min.js"></script>'."n");
$this->api->template->append('js_include','<script type="text/javascript"
  src="./atk4-addons/sterling/jqplot/templates/js/jqplot/jquery.jqplot.min.js"></script>'."n");

  $this->js()->_load('jqplot_helper');
  $chart = $p->add('jqplot', null, 'chart1');
  $chart->setSeries(array(array(3,7,9,1,4,6,8,2,5)));
}
  function defaultTemplate(){
       return array('page/line');
  }
}