<?php
define("WIDTH", 450);
define("HEIGHT", 450);
$piegraph_data = array (10, 5, 20, 40, 10, 15);
$img = imagecreate(WIDTH, HEIGHT);
$background = $white = imagecolorallocate($img, 0xFF, 0xFF, 0xFF);
$black = imagecolorallocate($img, 0, 0, 0);
$center_x = (int)WIDTH/2;
$center_y = (int)HEIGHT/2;
imagerectangle($img, 0, 0, WIDTH-1, HEIGHT-1, $black);
$last_angle = 0;
foreach($piegraph_data as $percentage) {
$arclen = (360 * $percentage) / 100;
imagefilledarc($img,
$center_x,
$center_y,
WIDTH-20,
HEIGHT-20,
$last_angle,
($last_angle + $arclen),
imagecolorallocate($img, rand(0, 0xFF), rand(0, 0xFF), rand(0, 0xFF)),
IMG_ARC_PIE);
$last_angle += $arclen;
}
header("Content-Type: image/png");
imagepng($img);
?>
