Refresh pagina quando premo "indietro"

[zoseppe]

preso da php.net

<?php
header( 'Expires: Sat, 2 Jul 2011 05:00:00 GMT' ); 
header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' ); 
header( 'Cache-Control: no-store, no-cache, must-revalidate' ); 
header( 'Cache-Control: post-check=0, pre-check=0', false ); 
header( 'Pragma: no-cache' ); 

?>