php - redirection without reloading the whole page -

i have framework , think i'm following mvc pattern: framework (the model) index page controls input (the controller) , views pages (that included inside main.php/the main html)

i read lot structure , logics, write application. read many comments "why outputting if going try , redirect user page?". answer is, common case: redirect after user logged in. need print something? of course, whole main page login form/post. how i'm supposed redirection??

so i'm bit confused logics , structure of application. how store output , header redirection without printing anything?

i thinking using javascript redirection read comments saying; "if write code (following logic/structre), won't need use hacks javascript redirection". how possible?

because php output_buffering should not enabled.

i have output_buffering enabled, , can use header (after output) without problem. if use javascript redirection whole page reloads, using header loads content (the views content included in main.php).

so how do without output_buffering?

if want redirect success page , pass messages - say, after successful login - easy solution use "flash" sessions, store message in session , then, it's used, discard it. don't need sore in output buffer this.

this basic example, should give gist of it.

login.php

if($login_successful) {      // put message in session     $_session['message'] = 'login successful';      // redirect success page     header('location: success.php'); } 

success.php

<?php session_start();  // check if $_session['message'] exists if(isset($_session['message'])) {      // print message     echo $_session['message'];      // clear session     $_session['message'] = null; }