$cookie_folder = "/"; // contoh path cookie, sebaiknya variable ini disimpan pada file config, agar mudah diubah sesui kebutuhan.
 
function jin_set_cookie($field, $value) {
	global $cookie_folder;
	header("Content-Type: text/html; charset=utf-8");
	setcookie($field, $value, time() + 604800, $cookie_folder);
}
function jin_del_cookie($field) {
	setcookie($field, "", time() - 604800, "");
}

jin_set_cookie("setup_warna", "biru");
jin_set_cookie("setup_chat", "off");

jin_del_cookie("setup_warna");
jin_del_cookie("setup_chat");