CodeIgniter 3 Routes Tutorial - URI Routing - YouTube
Building A Simple Web App Using CodeIgniter 4 - Part 2 | MVC Basics | by Tuan Sheroz Afridi Meedin | Mr. Meedin | Medium
Php CodeIgniter | I've explained about codeigniter 4 routing in detail this video and i've also discussed about other topics related to routes codeigniter 4
CodeIgniter Routes: URL Routing with Example
CodeIgniter Controllers, Views Routing: Learn with Example App