StackedBarGraph with legend

The code below is the source for this graph.

<?php
// StackedBarGraph with legend
require_once 'SVGGraph/autoloader.php';

$settings = [
  'auto_fit' => true,
  'back_colour' => '#eee',
  'back_stroke_width' => 0,
  'back_stroke_colour' => '#eee',
  'stroke_colour' => '#000',
  'axis_colour' => '#111',
  'axis_overlap' => 2,
  'grid_colour' => '#999',
  'label_colour' => '#000',
  'axis_font' => 'Arial',
  'axis_font_size' => 12,
  'pad_bottom' => 5,
  'minimum_grid_spacing' => 20,
  'show_subdivisions' => true,
  'show_grid_subdivisions' => true,
  'grid_subdivision_colour' => '#ccc',
  'bar_label_colour' => '#fff',
  'bar_label_font_size' => 11,
  'legend_text_side' => 'left',
  'legend_title' => 'Legend',
  'legend_title_font_size' => 11,
  'legend_reverse' => false,
  'legend_position' => 'outer right 0 10',
  'legend_back_colour' => '#eee',
  'legend_shadow_opacity' => 0,
  'legend_stroke_width' => 0,
  'legend_draggable' => false,
  'pad_right' => 100,
  'show_bar_labels' => true,
  'structured_data' => true,
  'structure' => [
    'key' => 0,
    'value' => [1, 2],
    'link' => [3, 4],
    'tooltip' => [5, 6],
    'label' => [7, 6],
    'legend_text' => [0, null],
    'colour' => [8, 9],
    'axis_text' => 10,
  ],
];

$type = 'StackedBarGraph';
$width = 600;
$height = 200;
$colours = [ [ 'red', 'yellow' ], [ 'blue', 'white' ] ];

$values = [
  [
    "January", 10, 30, "svggraph-using.php", "svggraph-embed.php",
    "Ten\nItems", "Bob", "**", "#f00", ["#f0f", "#303"], "J"
  ],
  [
    "February", 6, 20, "svggraph.php", "svggraph-settings.php",
    "Six\nItems", "Anne", "*", "#f63", ["#63f", "#00c"], "F"
  ],
  [
    "March", 13, 18, "svggraph-bar.php", "svggraph-bar3d.php",
    "Thirteen\nItems", "Sue", "***", "#f93", ["#93f", "#306"], "M"
  ],
  [
    "April", 16, 22, "svggraph-horizontal.php", "svggraph-line.php",
    "Sixteen\nItems", "Frank", "***", "#fc0", "#c0f", "A"
  ],
  [
    "May", 18, 25, "svggraph-radar.php", "svggraph-scatter.php",
    "Eighteen\nItems", "Alan", "****", "#9c0", "#63c", "M"
  ],
  [
    "June", 16, 28, "svggraph-pie.php", "svggraph-misc.php",
    "Sixteen\nItems", "Vera", "***", "#3f0", ["#00f", "#003"], "J"
  ],
];

$graph = new Goat1000\SVGGraph\SVGGraph($width, $height, $settings);
$graph->colours($colours);
$graph->values($values);

$graph->render($type);

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.