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检查网站上是否存在Cookie

[英]Check if cookie exists on website

原文 2014-01-23 16:28:17 8 2 php/ session/ drupal/ cookies/ session-cookies

I'm trying to redirect my users of my website toa page if a certain session cookie exists. 如果存在某个会话cookie，我试图将我的网站用户重定向到页面。 The session cookie is from another website and called pubcookie_l. 会话cookie来自另一个网站，称为pubcookie_1。 How do I see if this cookie exists when on my website, perhaps checking in php? 在我的网站上（可能是在php中）时，如何查看该cookie是否存在？ Thanks. 谢谢。

2 个解决方案

This is not possible. 这是不可能的。 You can not check some other domains cookie on different domain. 您无法在其他域上检查其他一些域cookie。

However you can check the Referer . 但是，您可以检查Referer 。 If the referer is your university's website. 如果推荐人是您大学的网站。

In PHP Referer can be accessed by $_SERVER['HTTP_REFERER'] variable. 在PHP中，可以通过$_SERVER['HTTP_REFERER']变量访问Referer。

Cookies don't exist "on the website", they exist on the client. Cookies不存在于“网站上”，而是存在于客户端上。 And the client doesn't (shouldn't) give any cookies to a domain that didn't set it. 并且客户端不会（不应）向未设置它的域提供任何cookie。

If it did, that would be a huge security risk (cookies often contain passwords or other sensitive information, even though they shouldn't), not to mention privacy concerns. 如果确实如此，那将带来巨大的安全风险（Cookie通常包含密码或其他敏感信息，即使它们不应该包含密码或其他敏感信息），更不用说隐私了。