PHP Web Application Design Basics

Question

I am making a twitter application using PHP. Please excuse me if this question is elementary. In my application, the initial landing page (index.php) contains code for login/oauth. If the user logs in successfully, should I load a new page altogether or simply echo html that renders the user's profile page. For example: if(login success) { load a file that renders selected user's profile page }

or something like

if(login success) { echo html that renders a profile page. }

Answer 1

I'd recommend looking into the use of some sort of PHP MVC framework.