Maintaining a single logged user into an account in php?

You don't need to have any polling method, in fact you all you need to do is store the session id of any logged in user along with their username in a database.

Every time the user loads a site of your homepage you have to check whether the user is logged in or not. This is always one sql query. So store the session-key along with the user-data and than you can simply add the session-key to the WHERE-clause to identify the user.

In this way you have only your one sql query which you have anyway to verfiy that the user is logged in.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.