Mightystuff

Create line or bar charts and graphs within php. They can be output directly or image files created.

Create line or bar charts and graphs within php. They can be output directly or image files created.

Usage

Simple bar chart

<?php
require_once 'Chart.php';
$bars = array(41,52,53,12,85,61,53,8,79,10,92,36);
$graph = new Chart();
$graph->addBars($bars, 'ff0000');
$graph->output();
?>

To output the chart to an image instead of directly to the browser:

$graph->output('filename.png');

Add X labels

<?php
require_once('Chart.php'); 
$bars = array(41,52,53,12,85,61,53,8,79,10,92,36); 
$dates = array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'); 
$graph = new Chart(); $graph->addBars($bars, 'ff0000'); 
$graph->addXLabels($dates, '000000'); 
$graph->output();
?>

Add Y scale

<?php
require_once('Chart.php'); 
$bars = array(41,52,53,12,85,61,53,8,79,10,92,36); 
$dates = array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'); 
$graph = new Chart(); 
$graph->addBars($bars, 'ff0000'); 
$graph->addXLabels($dates, '000000'); 
$graph->addYScale('000000'); 
$graph->output();
?>

Combine another bar graph

<?php 
require_once('Chart.php'); 
$bars1 = array(41,52,53,12,85,61,53,8,79,10,92,36); 
$bars2 = array(61,22,83,42,95,21,67,3,19,99,11,64); 
$dates = array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'); 
$graph = new Chart();$graph->addBars($bars1, 'ff0000'); 
$graph->addBars($bars2, '0000ff'); 
$graph->addXLabels($dates, '000000'); 
$graph->addYScale('000000'); 
$graph->output();
?>

Style with gradients

<?php 
require_once('Chart.php'); 
$bars1 = array(41,52,53,12,85,61,53,8,79,10,92,36); 
$bars2 = array(61,22,83,42,95,21,67,3,19,99,11,64); 
$dates = array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'); 
$graph = new Chart(); 
$graph->gradient = true; 
$graph->addBars($bars1, 'ff0000'); 
$graph->addBars($bars2, '0000ff'); 
$graph->addXLabels($dates, '000000'); 
$graph->addYScale('000000'); 
$graph->output();?>

Add a line graph

<?php 
require_once('Chart.php');
$bars1 = array(41,52,53,12,85,61,53,8,79,10,92,36);
$bars2 = array(61,22,83,42,95,21,67,3,19,99,11,64);

// create line data based on sine waves
$lines = array();
for($i=0; $i < 36; $i+=5) {
 $x = $i + 5; 
 $y1 = 1.5 + sin($i*0.2); 
 $y2 = 3.0 * (1.5 + sin($i * 0.2)); 
 $lines[] = $y1*20; $lines[] = $y2*20;
}
$dates = array('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
$graph = new Chart();
$graph->
gradient = true;
$graph->addBars($bars1, 'ff0000');
$graph->addBars($bars2, '0000ff');
$graph->addLines($lines, 'ffcc00');
$graph->addXLabels($dates, '000000');
$graph->addYScale('000000');
$graph->output();
?>

Requires:

PHP 5.0 / GD Library

Installation:

The script should work with GD version 2, PHP 5.0 and Linux and Windows servers
Licensed under the GNU Lesser General Public License as published by the Free Software Foundation.
Copyright © 2007 Chris Tomlinson.

Download

Download chart.php v0.2

Version Changes

Changes:
0.1 – first release
0.2 – added most default values