DynamicRouter.php

<?php
class Router{
    public $get = []; //when get routes are defined it is save here
    public $post = []; // post routes are saved when when defined
   
  //make a function that defined get routes
    public function get($url, $controller) {
        $this->get[$url] = $controller; // push url and controller to get property array
    }
  
  //make a function that defineds post routes
    public function post($url, $controller) {
        $this->post[$url] = $controller; // push url and controller to post property array
  
   }
  
  //make a function that checks for user request method and also check of route user is trying to access exists
  
    public function processData($url, $request) {
        if($request === "GET") { //this checks if its a get method
           if(array_key_exists($url, $this->get)) { // this checks if route exists
               return $this->get[$url]; // if routes exist return its controller
           }else {
               return "This routes is not found, sorry";
           }
       } else if ($request === "POST") { //this checks if its a post method
        
            if(array_key_exists($url, $this->post)) {
        
                return $this->post[$url];  // if routes exist return it's controller
        
            }else {
                return "This routes is not found, sorry";
            }
        }else {
            return "error";
        }
    }
}

// Usage
//instantiate Router
$app = new Router();

//define youre routes
$app->get("/", "Controllers/index.controller.php"); /
$app->post("about", "Controllers/index.controller.php");


$full_url = "http://{$_SERVER['HTTP_HOST']}{$_SERVER["REQUEST_URI"]}";// save  current url visited by user
$filtered_url = parse_url($full_url, PHP_URL_PATH); //parse the url to get the path

$controller = $app->processData($filtered_url, $_SERVER["REQUEST_METHOD"]); //process request and if path exist save to controller
require $controller; //require controller