仅在IE中的cookie问题

Question

我有这个用于创建cookie的代码

这适用于firefox和crome浏览器，但在IE中它一次又一次地创建cookie

if (!isset($_COOKIE["cook"])) {
    $expire = time() + 60 * 60 * 24 * 30 * 2;
    $data = array(
        "ip" => $_SERVER['REMOTE_ADDR'],
        "browser" => $_SERVER['HTTP_USER_AGENT'],
        "create_time" => $now
    );
    $result = $db->insert("cookies", $data);
    $cookie_id = $db->lastid;
    $cookie_id = my_encrypt($cookie_id);
    setcookie("cook", $cookie_id, $expire,"/","localhost");
} else {
    $cookie_id = $_COOKIE["cook"];
}

每当我访问页面时，它都会创建新的cookie

Answer 1

省略domain

的setcookie() - 参数