function updateUser($id, $name, $email) { // connect to database $conn = new PDO("mysql:host=localhost;dbname=myDB", "username", "password"); // prepare query $stmt = $conn->prepare("UPDATE users SET name = :name, email = :email WHERE id = :id"); // bind parameters $stmt->bindParam(':name', $name); $stmt->bindParam(':email', $email); $stmt->bindParam(':id', $id); // execute query $stmt->execute(); }In this example, the function takes three parameters: the user ID, the new user name, and the new user email. It connects to a MySQL database, prepares an update query, and binds the parameters to prevent SQL injection attacks. The query updates the corresponding user row in the database with the new name and email. The package library for this function could vary depending on the framework or application being used. It may be bundled with a specific framework or it could be part of a custom application library.