title: PHP redirect security
body: <p>Say I have a page that requires to be directed to two different pages of processing for whatever reason. </p>
  
  <p>So a user submits a form on page A, which takes them to page A.post, which then takes them to page A.complete, which finally redirects them to page A with the information submitted. </p>
  
  <p>A.post and A.complete are pure php, where database magic is happening and the user would normally never go there, and if they were to go directly to A.post or A.complete they would be presented with a blank page. </p>
  
  <p>Say A.post sends A.complete data via the query string, in $_GET. Is it possible for a user to somehow go to A.post to see those GET var's either while the redirect is taking place, or via looking at their page history? </p>
  
  <p>Hope I've been clear, cheers!</p>