Forståelses spørgsmål om header('Location: ..

<?php
header("Location: http://www.example.com/"); /* Redirect browser */

/* Make sure that code below does not get executed when we redirect. */
exit;
?>

 
DIFFERENCE IN ORIGIN
The difference between die() and exit() in PHP is their origin.
exit() is from exit() in C.
die() is from die in Perl.