It looks like you’re trying to use a Google search operator, possibly for security research or a CTF challenge.
The phrase inurl:index.php?id= is a common Google "dork" (advanced search query) used by security researchers and IT professionals to identify websites that might be vulnerable to or other URL-based exploits. inurl indexphpid upd
to identify websites using the PHP programming language that might be vulnerable to SQL Injection (SQLi) Cross-Site Scripting (XSS) due to how they handle the parameter. Malware Analysis It looks like you’re trying to use a
: The university's modern discovery service for searching across physical and electronic library collections. University of the Philippines Diliman Regional Open-Access & Search Tools inurl indexphpid upd
$id = $_GET['id']; $query = "SELECT * FROM products WHERE id = $id";