To minimize potential risks associated with inurl:index.php?id=upd :
: This suggests that the search is looking for URLs that not only contain "index.php" but also have a query string "?id=upd". The query string is part of a URL that contains data to be passed to a web application. In this case, it seems like the web application is expecting an "id" parameter and possibly looking for an update ("upd"). inurl indexphpid upd