DigitalExpo Reader for "Your RV Rental Starter Kit"
*
* Book ID: book_d8dd5c644794
* Reader URL: https://www.digitalexpo.ai/?ebook_reader_type=image&ebook_reader_id=1&digitalexpo_book=book_d8dd5c644794
*
* Why PHP (not nginx rewrite or .htaccess):
* - The stack is nginx; .htaccess does not apply natively.
* - eApps / ISPmanager panel regenerates the nginx vhost on any domain config change,
* which would clobber an in-vhost rewrite. PHP in the doc root survives that.
* - This is a true 301 (SEO-safe), not a meta refresh.
*
* UTM tagging: campaign tag is preserved so FB-ad clicks (or any other inbound)
* continue to flow attribution to DigitalExpo analytics.
*
* Edit history:
* 2026-05-26 Initial deployment.
*/
$dest_base = 'https://www.digitalexpo.ai/';
$params = [
'ebook_reader_type' => 'image',
'ebook_reader_id' => 1,
'digitalexpo_book' => 'book_d8dd5c644794',
'utm_source' => 'rvrentalstarterkit',
'utm_medium' => 'redirect',
'utm_campaign' => 'kit-domain-301',
];
// Allow inbound ?utm_* to pass through (overrides defaults). Lets FB ads or
// other campaigns set their own utm_source on the way in if they bypass the
// destination link directly.
foreach ($_GET as $k => $v) {
if (strpos($k, 'utm_') === 0) {
$params[$k] = $v;
}
}
$qs = http_build_query($params);
$url = $dest_base . '?' . $qs;
header('HTTP/1.1 301 Moved Permanently');
header('Location: ' . $url);
header('Cache-Control: max-age=86400, public');
header('X-Redirect-Source: rvrentalstarterkit.com');
// Fallback HTML in case the header doesn't take (very rare but cheap insurance).
?>
Your RV Rental Starter Kit