Adds phpdoc comments

app/classes/router.php

@@ -1,13 +1,37 @@
 <?php
 
+/**
+ * Class Router
+ *
+ * A simple Router class to manage URL-to-callback mapping and dispatch requests to the appropriate controllers and methods.
+ * The class supports defining routes, matching URLs against patterns, and invoking callbacks for matched routes.
+ */
 class Router {
 
+    /**
+     * @var array $routes Associative array of route patterns and their corresponding callbacks.
+     */
     private $routes = [];
 
+    /**
+     * Adds a new route to the router.
+     *
+     * @param string $pattern  The URL pattern to match (regular expression).
+     * @param string $callback The callback for the route in the format "Controller@Method".
+     *
+     * @return void
+     */
     public function add() {
         $this->routes[$pattern] = $callback;
     }
 
+    /**
+     * Dispatches a request to the appropriate route callback.
+     *
+     * @param string $url The URL to match against the defined routes.
+     *
+     * @return void Outputs the result of the invoked callback or a 404 error if no route matches.
+     */
     public function dispatch($url) {
         // remove variables from url
         $url = strtok($url, '?');
@@ -25,9 +49,18 @@ class Router {
         echo '404 page not found';
     }
 
+    /**
+     * Invokes the callback for a matched route.
+     *
+     * @param string $callback The callback for the route in the format "Controller@Method".
+     * @param array  $params   Parameters extracted from the route pattern.
+     *
+     * @return void Executes the specified method on the specified controller with the provided parameters.
+     *
+     * @throws Exception If the controller class or method does not exist.
+     */
     private function invoke($callback, $params) {
         list($controllerName, $methodName) = explode('@', $callback);
-//        $controllerClass = "\\App\\Controllers\\$controllerName";
         $controllerClass = "../pages/$pageName";
         $controller = new $controllerClass();
         call_user_func_array([$controller, $methodName], $params);