[slimak]

I checked that and when you redirect from /a/phpinfo.php to /b/phpinfo.php it works, but when your redirect from /phpinfo.php (document_root) to /b/phpinfo.php it doesn't work.
I have files:
public_html/.htaccess:
RewriteEngine on
RewriteRule phpinfo.php /2/phpinfo.php

public_html/2/.htaccess:
php_value register_globals off

public_html/2/phpinfo.php:
<?php
phpinfo();
?>

There is no file public_html/phpinfo.php.
1. When I enter http://domain/phpinfo.php, then register_globals are on (wrong).
2. When I enter http://domain/2/phpinfo.php, then register_globals are off (correct).
3. When I enter http://domain/empty_dir/phpinfo.php, then register_globals are off (correct).