feat: multiple hostname routing

Author: ddevsr

system/Router/RouteCollection.php

@@ -1571,6 +1571,13 @@ private function checkHostname($hostname): bool
             return false;
         }
 
+        // Has multiple hostname
+        if (is_array($hostname)) {
+            $hostnameLower = array_map('strtolower', $hostname);
+
+            return in_array(strtolower($this->httpHost), $hostnameLower, true);
+        }
+
         return strtolower($this->httpHost) === strtolower($hostname);
     }
 

tests/system/Router/RouteCollectionTest.php

@@ -13,6 +13,7 @@
 
 namespace CodeIgniter\Router;
 
+use App\Controllers\Home;
 use App\Controllers\Product;
 use CodeIgniter\Config\Services;
 use CodeIgniter\controller;
@@ -1744,6 +1745,46 @@ public function testRouteOverwritingMatchingHost(): void
         $this->assertSame($expects, $router->handle('/'));
     }
 
+    public function testRouteMatchingHostMultipleCorrect(): void
+    {
+        service('superglobals')->setServer('HTTP_HOST', 'two.domain.com');
+        service('request')->setMethod(Method::GET);
+
+        $routes = $this->getCollector();
+        $router = new Router($routes, Services::request());
+
+        $routes->setDefaultNamespace('App\Controllers');
+        $routes->setDefaultController('Home');
+        $routes->setDefaultMethod('index');
+
+        $routes->get('/', 'Home::index', ['as' => 'ddd']);
+        $routes->get('/', '\App\Controllers\Site\CDoc::index', ['hostname' => ['one.domain.com', 'two.domain.com', 'three.domain.com']]);
+
+        $expects = '\App\Controllers\Site\CDoc';
+
+        $this->assertSame($expects, $router->handle('/'));
+    }
+
+    public function testRouteMatchingHostMultipleFail(): void
+    {
+        service('superglobals')->setServer('HTTP_HOST', 'doc.domain.com');
+        service('request')->setMethod(Method::GET);
+
+        $routes = $this->getCollector();
+        $router = new Router($routes, Services::request());
+
+        $routes->setDefaultNamespace('App\Controllers');
+        $routes->setDefaultController('Home');
+        $routes->setDefaultMethod('index');
+
+        $routes->get('/', 'Home::index', ['as' => 'ddd']);
+        $routes->get('/', '\App\Controllers\Site\CDoc::index', ['hostname' => ['one.domain.com', 'two.domain.com', 'three.domain.com']]);
+
+        $expects = '\\' . Home::class;
+
+        $this->assertSame($expects, $router->handle('/'));
+    }
+
     /**
      * Tests for router DefaultNameSpace issue
      *