How to make a redirect if the get parameter is passed to the homepage?

Question

PHP

How to make a redirect if we make such a request site.ru/?params=1 or site.ru/? and redirects just to site.ru
Thanks for your help.

Answer 1

if(count($_GET) > 0 || substr($_SERVER['REQUEST_URI'], -1) == '?') header('Location: /');

First condition

count($_GET) > 0

will check if GET parameters were passed. But if the query is just

site.ru/?

, the condition will return 0. Therefore, the second condition is to check if there is a question mark at the end of the query.