Login interface or direct management?

Question

I'm making a website that doesn't require users, but it needs to show updated info from time to time, since the page is for a possible customer, I want to know, should I make a login and simple user interface(hidden) just the customer or is there another way to update the info from the page ? I'm good as a designer with html + css and intermediate with the back end coding but I've never uploaded a page officially so I don't know what to do about this problem.
(if I explained something badly let me know)

Answer 1

You can make a database in SQL and a forum page in php

Answer 2

You'd be better off using a system like WordPress.org.

If you implement your own login script, it will be easily hacked. This is why frameworks like Drupal or WordPress are good. Security experts have spent multiple hours dedicated to just the login system. Why reinvent the wheel? And at that, a poorly made wheel.