Want Help related to login page

[nehas]

Hi I am developing a site using PHP and mysql . I am really new to it.Now I have a problem that I have build up a login page . Before accessing any of the web pages on my site first user should login . But I fail to understand how to make this possible that before calling any page first the user must login.
Please Help Me , and Thanks for any help in advance.

[debasisdas]

There must be a home page with login option.

Any user must be able to access that page of the site.

After login the user can be redirected to other important pages.

[malav123]

Hi,
Make your login page as startup page of your application and put there login name as well as password, only after verified, redirect the user to the specified page.....