PHP会话变量在实时服务器上不起作用

Question

I have developed a website in php in which I have a login form that checks user's authentication using user name and password.

The pages to be accessible only by authenticated users checks session variables either true or false. These variables are set to true if username and password of user are true and I have set that during login check and so users can't access webpages by directly writing page name in URL.

This works fine on local host but fails on live server, somebody plz help me

Answer 1

Issues

1) database may not connecting properly,

or 2) session save path at tmp folder is not writable.