<?php
define("WIDTH", 200);
define("HEIGHT", 200);
$img = imagecreate(WIDTH, HEIGHT);
$background = $white = imagecolorallocate($img, 0xFF, 0xFF, 0xFF);
$black = imagecolorallocate($img, 0, 0, 0);
$red = imagecolorallocate($img, 0xFF, 0, 0);
$blue = imagecolorallocate($img, 0, 0, 0xFF);
$center_x = (int)WIDTH/2;
$center_y = (int)HEIGHT/2;
imagerectangle($img, 0, 0, WIDTH-1, HEIGHT-1, $black);
imageline($img, 0, 0, WIDTH-1, HEIGHT-1, $red);
imagefill($img, 2, 20, $black);
imagefilltoborder($img, WIDTH-2, 20, $red, $blue);
header("Content-Type: image/png");
imagepng($img);
?>
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