ทำความรู้จักกับ URL และ URI Routing ใน CodeIgniter 4

https://www.mysslweb.com/news/say-it-isnt-so

example.com/class/method/ID

https://www.mysslweb.com/news/say-it-isnt-so

https://www.mysslweb.com/index.php/news/say-it-isnt-so

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

example.com/class/method/id/

example.com/product/1/
example.com/product/2/
example.com/product/3/
example.com/product/4/

/**
 * --------------------------------------------------------------------
 * Route Definitions
 * --------------------------------------------------------------------
 */

// We get a performance increase by specifying the default
// route since we don't have to scan directories.
$routes->get('/', 'Home::index');
$routes->match(['get'], 'news/delete/(:num)', 'News::delete/$1');
$routes->match(['get', 'post'], 'news/edit/(:num)', 'News::edit/$1');
$routes->match(['get', 'post'], 'news/create', 'News::create');
$routes->get('news/(:segment)', 'News::view/$1');
$routes->get('news', 'News::index');
$routes->get('(:any)', 'Pages::view/$1');

News::view/$1

// เรียกใช้งานผ่านคำสั่ง $News->create()
// News controller เรียกใช้ create() method
News::create

// เรียกใช้งานผ่านคำสั่ง $News->view(1, 23)
// News controller เรียกใช้ vies() method โดยส่ง parameter 2 ค่าเข้าไปคือ 1 และ 23
News::view/1/23

$routes->add('product/(:num)', 'App\Catalog::productLookup');

// เรียกใช้งานผ่านคำสั่ง App\Catalog::productLookup() ทั้งสองกรณีด้านล่าง
example.com/product/1/
example.com/product/2/

$routes->add('journals', 'App\Blogs');

$routes->add('blog/joe', 'Blogs::users/34');

$routes->add('product/(:any)', 'Catalog::productLookup');

$routes->add('product/(:num)', 'Catalog::productLookupByID/$1');

$routes->addPlaceholder('uuid', '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}');
$routes->add('users/(:uuid)', 'Users::show/$1');

$routes->addPlaceholder('uuid', '(\d){5}'); // เป็นต้วเลข 5 หลัก
$routes->add('users/(:uuid)', 'Users::show/$1');

example.com/users/12345
example.com/users/99999

$routes->add('users/((\d){5})', 'Users::show/$1');

$routes->add('feed', function()
{
    $rss = new RSSFeeder(); // เรียกใช้งาน feed object 
    return $rss->feed('general'); // แสดงข้อมูล feed
});

$routes->get('/', 'Home::index');
$routes->match(['get'], 'news/delete/(:num)', 'News::delete/$1');
$routes->match(['get', 'post'], 'news/edit/(:num)', 'News::edit/$1');
$routes->match(['get', 'post'], 'news/create', 'News::create');
$routes->get('news/(:segment)', 'News::view/$1');
$routes->get('news', 'News::index');
$routes->get('(:any)', 'Pages::view/$1');

$routes_data['/'] =  'Home::index';
$routes_data['news/delete/(:num)'] =  'News::delete/$1';
$routes_data['news/edit/(:num)'] =  'News::edit/$1';
$routes_data['news/create'] =  'News::create';
$routes_data['news/(:segment)'] =  'News::view/$1';
$routes_data['news'] =  'News::index';
$routes_data['(:any)'] =  'Pages::view/$1';
$routes->map($routes_data);

$routes->get('/', 'Home::index');
$routes->group('news', function($routes)
{
	$routes->match(['get'], 'delete/(:num)', 'News::delete/$1');
	$routes->match(['get', 'post'], 'edit/(:num)', 'News::edit/$1');
	$routes->match(['get', 'post'], 'create', 'News::create');
	$routes->get('(:segment)', 'News::view/$1');
	$routes->get('/', 'News::index');
});
$routes->get('(:any)', 'Pages::view/$1');

$routes->group('admin', function($routes)
{
    $routes->group('users', function($routes)
    {
        $routes->add('list', 'Admin\Users::list');
        $routes->add('add', 'Admin\Users::add');
    });

});

example.com/admin/users/list
example.com/admin/users/add

$routes->get('products', 'Product::feature');
$routes->post('products', 'Product::feature');
$routes->put('products/(:num)', 'Product::feature');
$routes->delete('products/(:num)', 'Product::feature');

$routes->match(['get', 'put'], 'products', 'Product::feature');

$routes->add('from', 'to', $options);
$routes->get('from', 'to', $options);
$routes->post('from', 'to', $options);
$routes->put('from', 'to', $options);
$routes->head('from', 'to', $options);
$routes->options('from', 'to', $options);
$routes->delete('from', 'to', $options);
$routes->patch('from', 'to', $options);
$routes->match(['get', 'put'], 'from', 'to', $options);
$routes->resource('photos', $options);
$routes->map($array, $options);
$routes->group('name', $options, function());

$routes->add('admin',' AdminController::index', ['filter' => 'admin-auth']);

$routes->add('users/delete/(:segment)', 'AdminController::index', ['filter' => 'admin-auth:dual,noreturn']);

// เรียกใช้งาน controller \Admin\Users::index()
$routes->add('admin/users', 'Users::index', ['namespace' => 'Admin']);

$routes->get('from', 'to', ['hostname' => 'accounts.example.com']);

// เรียกใช้งานได้เฉพาะ media.example.com
$routes->add('from', 'to', ['subdomain' => 'media']);

// เรียกใช้งานได้ทุกๆ sub-domain
$routes->add('from', 'to', ['subdomain' => '*']);

/**
 * --------------------------------------------------------------------
 * Router Setup
 * --------------------------------------------------------------------
 */
$routes->setDefaultNamespace('App\Controllers');
$routes->setDefaultController('Home');
$routes->setDefaultMethod('index');
$routes->setTranslateURIDashes(false);
$routes->set404Override();
$routes->setAutoRoute(true);

// Controller class คือ App\Controllers\Home
$routes->get('/', 'Home::index');

// Controller class คือ App\Controllers\Pages
$routes->get('(:any)', 'Pages::view/$1');

$routes->setDefaultNamespace('App');

// Controller class คือ \App\Users
$routes->add('users', 'Users::index');

// Controller class คือ \App\Admin\Users
$routes->add('users', 'Admin\Users::index');

// เปิดไปหน้า mysslweb.com ก็จะเรียกใช้งาน app/Controllers/Welcome.php
$routes->setDefaultController('Welcome');

$routes->setDefaultMethod('index');

$routes->setTranslateURIDashes(true);

<?php namespace App\Controllers;
 
use CodeIgniter\Controller;
 
class Admin_auth extends Controller
{

}

    mysslweb.com/login

$routes->setAutoRoute(false);

// หรือให้เรียก App\Errors class และใช้งาน methd show404 ที่เรากำหนดขึ้น
$routes->set404Override('App\Errors::show404');

// หรือแบบนี้ก็ได้

// ให้แสดงหน้าที่เรากำหนดเองในไฟล์ app/Views/my_errors/not_found.html
$routes->set404Override(function()
{
    echo view('my_errors/not_found.html');
});