[PHP] Persistent state applications

[James Colannino]

Hey everyone!  I'm very new to PHP, and had a somewhat general question 
(forgive me if it's too broad in scope.)  Basically, I'd like to be able 
to have a single PHP application that remembers its state as users click 
on links.  When the user clicks on a link, though, the user unavoidably 
re-requests the URL from the web server, which forces the PHP 
application to reload.  I'm therefore uncertain as to how I should keep 
the program in a state in which it remembers things like login 
information when the users have to click on links in order to navigate 
the application.

This is especially an issue for me when it comes to maintaining things 
like persistent connections to SQL servers.

Thanks!

James

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