title: What is the proper way to pass a variable when page refresh/reload using php?
body: <p>I've a php page that refreshes every minute and on it an php array global variable that I use to compare values (before and after a page refresh).</p>
  
  <p>But I've a problem, whenever the page is refreshed, the php array is resetted. I know that's because HTML is stateless but I want to mantain the state of this array.</p>
  
  <p>How can I do that?</p>