define("WIDTH", 200);

define("HEIGHT", 200);

$img = imagecreate(WIDTH, HEIGHT);

$background = $white = imagecolorallocate($img,0, 0xFF, 0xFF);

$red = imagecolorallocate($img, 255, 0, 0);

imagerectangle($img, 0, 0, WIDTH-1, HEIGHT-1, $red);

$dashed = array($red, $red, $red, $white, $white, $white);

$sos = array($red, $red,

$white, $white,

$red, $red,

$white, $white,

$red, $red,

$white, $white,

$red, $red, $red, $red,

$white, $white,

$red, $red, $red, $red,

$white, $white,

$red, $red, $red, $red,

$white, $white,

$red, $red,

$white, $white,

$red, $red,

$white, $white,

$red, $red,

$white, $white,$white, $white,$white, $white);

imagesetstyle($img, $sos);

imageline($img, 0, 0, WIDTH-1, HEIGHT-1, IMG_COLOR_STYLED);

imageline($img, 0, HEIGHT-1, WIDTH-1, 0, IMG_COLOR_STYLED);

imagesetstyle($img, $dashed);

imagerectangle($img, 30, 30, WIDTH-31, HEIGHT-31, IMG_COLOR_STYLED);

imagerectangle($img, 50, 50, WIDTH-51, HEIGHT-51, $red);

header("Content-Type: image/png");

imagepng($img);

After running the program you will get the following output

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