<?php
define("WIDTH", 450);
define("HEIGHT", 450);
$img = imagecreate(WIDTH, HEIGHT);
$background = $white = imagecolorallocate($img, 0xFF, 0xFF, 0xFF);
$blue = imagecolorallocate($img, 0, 0, 0xFF);
$red = imagecolorallocate($img, 0xFF, 0, 0);
imagefilledrectangle($img, 10, 10, WIDTH-10, HEIGHT-10, $blue);
imagefilledellipse($img, WIDTH/2, HEIGHT/2, WIDTH-30, HEIGHT-30, $red);
header("Content-Type: image/png");
imagepng($img);
?>