$image = imagecreatetruecolor(300, 300);

$white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);

$gray = imagecolorallocate($image, 0xC0, 0xC0, 0xC0);

$darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90);

$navy = imagecolorallocate($image, 0x00, 0x00, 0x80);

$darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50);

$red = imagecolorallocate($image, 0xFF, 0x00, 0x00);

$darkred = imagecolorallocate($image, 0x90, 0x00, 0x00);

for ($i = 160; $i > 150; $i--) {

imagefilledarc($image, 150, $i, 200, 100, 0, 45, $darknavy, IMG_ARC_PIE);

imagefilledarc($image, 150, $i, 200, 100, 45, 75 , $darkgray, IMG_ARC_PIE);

imagefilledarc($image, 150, $i, 200, 100, 75, 360 , $darkred, IMG_ARC_PIE);

imagefilledarc($image, 150, 150, 200, 100, 0, 45, $navy, IMG_ARC_PIE);

imagefilledarc($image, 150, 150, 200, 100, 45, 75 , $gray, IMG_ARC_PIE);

imagefilledarc($image, 150, 150, 200, 100, 75, 360 , $red, IMG_ARC_PIE);

header('Content-type: image/png');

imagepng($image);

imagedestroy($image);

After running the program you will get the following output

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