Gantt chart

The code below is the source for this graph.

<?php
// Gantt chart
require_once 'SVGGraph/autoloader.php';

$options = [
  'auto_fit' => true,
  'structure' => [
    'key' => 0, 'axis_text' => 1, 'value' => 2, 'end' => 3,
    'complete' => 4,
    'milestone' => 'm',
    'group' => 'g',
  ],
  'show_data_labels' => true,
  'data_label_font_weight' => 'bold',
  'pad_right' => 30,
  'gantt_today_date' => '2022-04-19',
];

$values = [
  [0, 'Big project', 'g' => 'top'],

  [1, 'First part', 'g' => '*'],
  [2, 'A simple task', '2022-04-01', '2022-04-13', 80],
  [3, 'Second task', '2022-04-05', '2022-04-20', 40],

  [4, 'Second part', 'g' => '*'],
  [5, 'Important date', '2022-04-26', 'm' => true],
  [6, 'Third task', '2022-05-02', '2022-05-17', 10],
  [7, 'Final task', '2022-05-16', '2022-05-20', 0],
];

$graph = new Goat1000\SVGGraph\SVGGraph(670, 'auto', $options);
$graph->values($values);
$graph->colourRangeHexHSL(0, '#c50', '#c59');
$graph->colourRangeHexHSL(1, '#6a0', '#6a9');
$graph->render('GanttChart');

Please note: the source code above comes from a script used to generate one of the example graphs on the site. This is simply a wrapper page to apply highlighting and make the source code easier to read, so there is no content here to describe what the source code is doing.