Redirecting an URL just for a given referring URL

Question

I have a website (eg. https://example.com) and it has (amongst others) a page called origpage.php. But, I do not want the origpage.php to open when a visitor who comes from a given domain (eg. http://example.net) want to open it. I want this visitor to be redirected to an other page, eg. otherpage.php. How can I do it? (I think the "question-duplication" is not the case.)

You are probably looking for `$_SERVER['HTTP_REFERER']` and `parse_url` — HTMHell, Dec 10 '17 at 10:16
Are you saying that when a person uses `https://example.com/origpage.php` then keep him on the page itself. But if he uses `http://example.net/origpage.php` then redirect him to `http://example.net/otherpage.php` ? — Mrigank Pawagi, Dec 10 '17 at 10:18
No. If someone wants to open `https://example.com/origpage.php` then this page to be opened. Except, if someone comes from `http://example.net`. He has to be redirected to `https://example.com/otherpage.php` — ZsG, Dec 10 '17 at 10:22

score 2 · Accepted Answer · answered Dec 10 '17 at 10:22

Try something like this:

if (isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER'])) {
    $domain = str_ireplace('www.', '', parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST));

    if ($domain == 'example.net') {
        header('location: otherpage.php');
        die();
    }
}

Redirecting an URL just for a given referring URL

1 Answers1