docs: use Array Callable Syntax for routing

Author: kenjis

user_guide_src/source/tutorial/create_news_items/004.php

@@ -2,10 +2,13 @@
 
 // ...
 
-$routes->match(['get', 'post'], 'news/create', 'News::create');
-$routes->get('news/(:segment)', 'News::view/$1');
-$routes->get('news', 'News::index');
-$routes->get('pages', 'Pages::index');
-$routes->get('(:any)', 'Pages::view/$1');
+use App\Controllers\News;
+use App\Controllers\Pages;
+
+$routes->match(['get', 'post'], 'news/create', [News::class, 'create']);
+$routes->get('news/(:segment)', [News::class, 'view']);
+$routes->get('news', [News::class, 'index']);
+$routes->get('pages', [Pages::class, 'index']);
+$routes->get('(:any)', [Pages::class, 'view']);
 
 // ...

user_guide_src/source/tutorial/news_section/008.php

@@ -2,9 +2,12 @@
 
 // ...
 
-$routes->get('news/(:segment)', 'News::view/$1');
-$routes->get('news', 'News::index');
-$routes->get('pages', 'Pages::index');
-$routes->get('(:any)', 'Pages::view/$1');
+use App\Controllers\News;
+use App\Controllers\Pages;
+
+$routes->get('news/(:segment)', [News::class, 'view']);
+$routes->get('news', [News::class, 'index']);
+$routes->get('pages', [Pages::class, 'index']);
+$routes->get('(:any)', [Pages::class, 'view']);
 
 // ...

user_guide_src/source/tutorial/static_pages.rst

@@ -147,7 +147,7 @@ Add the following lines, **after** the route directive for '/'.
 
 CodeIgniter reads its routing rules from top to bottom and routes the
 request to the first matching rule. Each rule is a regular expression
-(left-side) mapped to a controller and method name separated by slashes
+(left-side) mapped to a controller and method name
 (right-side). When a request comes in, CodeIgniter looks for the first
 match, and calls the appropriate controller and method, possibly with
 arguments.

user_guide_src/source/tutorial/static_pages/004.php

@@ -1,4 +1,6 @@
 <?php
 
-$routes->get('pages', 'Pages::index');
-$routes->get('(:any)', 'Pages::view/$1');
+use App\Controllers\Pages;
+
+$routes->get('pages', [Pages::class, 'index']);
+$routes->get('(:any)', [Pages::class, 'view']);