How to make CNC in self-written PHP?

Question

PHP

Hi friends!
Created a service in procedural php. There are users. Now users are displayed, for example, test.ru/user/user.php?=1 , how to create a CNC so that test.ru/toster is displayed in this way and so that the user can change it himself.
Thank you very much in advance.

Answer 1

Learning to use Google: for example

Answer 2

https://github.com/klein/klein.php