9a. Integer keys

The code below is the source for this graph.

<?php
// 9a. Integer keys
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' => '#333',
  'axis_overlap' => 3,
  'grid_colour' => '#999',
  'label_colour' => '#000',
  'axis_font' => 'Arial',
  'axis_font_size' => 10,
  'pad_right' => 0,
  'pad_left' => 10,
  'minimum_grid_spacing' => 20,
  'bar_space' => 3,
  'grid_division_v' => 3,
  'grid_division_h' => 2,
  'axis_max_v' => 32,
];

$width = 300;
$height = 300;
$type = 'BarGraph';
$values = [
  31, 28, 31, 30,
  31, 30, 31, 31,
  30, 31, 30, 31,
];

$hot = ['red','yellow'];
$warm = ['yellow','blue','white'];
$cold = ['blue','white'];
$colours = [$cold,$cold,$cold,$warm,$hot,$hot,$hot,$hot,$warm,$warm,$cold,$cold];

$graph = new Goat1000\SVGGraph\SVGGraph($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.