Does the referrer variable follow the redirection ?

When there is a php : header("location: $url"); redirection
the referrer follows to the redirected landing page or the landing page perceive it as blank ?

 

The referer is sent by the browser, not by PHP. But you can test it easily:

Page1.php

header('Location: page2.php');

PHP:

Page2.php:

echo $_SERVER['HTTP_REFERER'];

PHP:

 

You can pass the HTTP_REFERER via the $_GET variable.

Peace,

 

Correct HTTP_REFERRER is passed by the browser itself.

From memory you will find it is not passed by the browser when in SSL mode for security reasons. At least that's what I experienced awhile ago when I was doing some testing on IE6.