title: Refresh a div automatically when a PHP variable is updated
body: <p>I have a div that calls a variable. When that variable changes, users need to refresh the page to see the new value. The variable is pulled from a separate PHP file. </p>
  
  <p>I'm wondering if there's a way to use ajax to automatically update the div without the user refreshing the browser when it sees the PHP variable has been updated.</p>