How can the hoster adjust the web server process to run with the user's UID?

To adjust the web server process to run with the user's UID, the hoster can modify the configuration of the web server to use suEXEC or FastCGI. This will allow the web server to run scripts as the user who owns them, rather than as a generic user like 'www-data' or 'apache'. By running scripts with the user's UID, it improves security and ensures that each user's files are only accessible to that user.

// Example PHP code snippet to run a script with the user's UID
<?php
putenv("PHPRC=/path/to/user/php.ini");
exec('sudo -u username /path/to/php /path/to/script.php');
?>