为什么在浏览器上添加cookie时需要登录？

Question

I login to website successfully and cookie add in browser for that website but 1 day later, I enter this website so website require me login although I check cookie still available somebody can help me to explain in this case ! P/S:this website use PHP source. in case appear in some other PHP website

Answer 1

So what it sounds like is happening is that the session cookie (the cookie used to authenticate you) expired. Cookies are often set to expire to log you out of a given application for security reasons (to prevent cases such as someone else using your computer and accessing your banking details because the cookie didn't expire and you didn't explicitly click log out).