set-cookie header multiple times

Question

I have this code in a assets controller to get images:

function images($path,$image_name)
{
    $image = "../assets/images/$path/$image_name";

    if (file_exists ($image) && (is_file($image))) {
        $name = $image_name;
    } else {

    }

    $file = getimagesize($image);
    $filesize = filesize($image);

    $time_cache = 360000000000;
    $ts = gmdate("D, d M Y H:i:s", time() + $time_cache) . " GMT";
    header("Content-Type: {$file['mime']}\n");
    header("Content-disposition: inline; filename=\"$name\"\n");
    header("Content-Length: $filesize\n");
    header("Expires: $ts");
    header("Pragma: cache");
    header("Cache-Control: max-age=$time_cache");
    readfile ($image);
}

I have set csrf protection to true in config/config.php file and every request for an image is sent with Set-Cookie header. So the csrf-cookie can get set multiple times on some pages. Is that something to worry about, and if so, is there a way to prevent this?

Answer 1

I managed to do this with header_remove("set-cookie");

So the code looks like this

header("Content-Type: {$file['mime']}\n");
header("Content-disposition: inline; filename=\"$name\"\n");
header("Content-Length: $filesize\n");
header("Expires: $ts");
header("Pragma: cache");
header("Cache-Control: max-age=$time_cache");
header_remove("set-cookie");
readfile ($image);