Merge branch 'master' into replace-table-with-chart-in-readme

.gemini/GEMINI.md

@@ -16,11 +16,11 @@ This is the main FlightPHP core library for building fast, simple, and extensibl
 - Run tests: `composer test` (uses phpunit/phpunit and spatie/phpunit-watcher)
 - Run test server: `composer test-server` or `composer test-server-v2`
 - Lint code & Check code style: `composer lint` (uses phpstan/phpstan, level 6)
-- Beautify code: `composer format` (uses squizlabs/php_codesniffer, PSR1)
+- Beautify code: `composer format` (uses squizlabs/php_codesniffer, PSR12)
 - Test coverage: `composer test-coverage`
 
 ## Coding Standards
-- Follow PSR1 coding standards (enforced by PHPCS)
+- Follow PSR12 coding standards (enforced by PHPCS)
 - Use strict comparisons (`===`, `!==`)
 - PHPStan level 6 compliance
 - Focus on PHP 7.4 compatibility (avoid PHP 8+ only features)

.github/copilot-instructions.md

@@ -16,11 +16,11 @@ This is the main FlightPHP core library for building fast, simple, and extensibl
 - Run tests: `composer test` (uses phpunit/phpunit and spatie/phpunit-watcher)
 - Run test server: `composer test-server` or `composer test-server-v2`
 - Lint code & Check code style: `composer lint` (uses phpstan/phpstan, level 6)
-- Beautify code: `composer format` (uses squizlabs/php_codesniffer, PSR1)
+- Beautify code: `composer format` (uses squizlabs/php_codesniffer, PSR12)
 - Test coverage: `composer test-coverage`
 
 ## Coding Standards
-- Follow PSR1 coding standards (enforced by PHPCS)
+- Follow PSR12 coding standards (enforced by PHPCS)
 - Use strict comparisons (`===`, `!==`)
 - PHPStan level 6 compliance
 - Focus on PHP 7.4 compatibility (avoid PHP 8+ only features)

AGENTS.md

@@ -16,11 +16,11 @@ This is the main FlightPHP core library for building fast, simple, and extensibl
 - Run tests: `composer test` (uses phpunit/phpunit and spatie/phpunit-watcher)
 - Run test server: `composer test-server` or `composer test-server-v2`
 - Lint code & Check code style: `composer lint` (uses phpstan/phpstan, level 6)
-- Beautify code: `composer format` (uses squizlabs/php_codesniffer, PSR1)
+- Beautify code: `composer format` (uses squizlabs/php_codesniffer, PSR12)
 - Test coverage: `composer test-coverage`
 
 ## Coding Standards
-- Follow PSR1 coding standards (enforced by PHPCS)
+- Follow PSR12 coding standards (enforced by PHPCS)
 - Use strict comparisons (`===`, `!==`)
 - PHPStan level 6 compliance
 - Focus on PHP 7.4 compatibility (avoid PHP 8+ only features)

CONTRIBUTING.md

@@ -9,19 +9,19 @@ Flight aims to be simple and fast. Anything that compromises either of those two
 
 * **Dependencies** - We strive to be dependency free in Flight. Yes even polyfills, yes even `Interface` only repos like `psr/container`. The fewer dependencies, the fewer your exposed attack vectors.
 
-* **Coding Standards** - We use PSR1 coding standards enforced by PHPCS. Some standards that either need additional configuration or need to be manually done are:
+* **Coding Standards** - We use PSR-12 coding standards enforced by PHPCS. Some standards that either need additional configuration or need to be manually done are:
   *  PHPStan is at level 6.
-  *  `===` instead of truthy or falsey statements like `==` or `!is_array()`.
+  *  `===` instead of truthy or falsy statements like `==`.
 
 * **PHP 7.4 Focused** - We do not make PHP 8+ focused enhancements on the framework as the focus is maintaining PHP 7.4.
 
 * **Core functionality vs Plugin** - Have a conversation with us in the [chatroom](https://matrix.to/#/!cTfwPXhpkTXPXwVmxY:matrix.org?via=matrix.org&via=leitstelle511.net&via=integrations.ems.host) to know if your idea is worth makes sense in the framework or in a plugin.
 
-* **Testing** - Until automated testing is put into place, any PRs must pass unit testing in PHP 7.4 and PHP 8.2+. Additionally you need to run `composer test-server` and `composer test-server-v2` and ensure all the header links work correctly.
+* **Testing** - PRs must pass unit tests on PHP 7.4 through PHP 8.5+. Additionally you need to run `composer test-server` and `composer test-server-v2` and ensure all the header links work correctly.
 
 #### **Did you find a bug?**
 
-* **Do not open up a GitHub issue if the bug is a security vulnerability**. Instead contact maintainers directly via email to safely pass in the information related to the security vuln.
+* **Do not open up a GitHub issue if the bug is a security vulnerability**. Instead contact maintainers directly via email to safely share details about the security vulnerability.
 
 * **Ensure the bug was not already reported** by searching on GitHub under [Issues](https://github.com/flightphp/core/issues).
 

README.md

@@ -22,13 +22,10 @@ composer require flightphp/core
 or you can download a zip of this repo. Then you would have a basic `index.php` file like the following:
 
 ```php
-// if installed with composer
-require 'vendor/autoload.php';
-// or if installed manually by zip file
-// require 'flight/Flight.php';
+require 'flight/autoload.php';
 
 Flight::route('/', function () {
-  echo 'hello world!';
+    echo 'hello world!';
 });
 
 Flight::start();
@@ -78,9 +75,10 @@ If you have a current project on v2, you should be able to upgrade to v3 with no
 > [!IMPORTANT]
 > Flight requires `PHP 7.4` or greater.
 
-**Note:** PHP 7.4 is supported because at the current time of writing (2024) PHP 7.4 is the default version for some LTS Linux distributions. Forcing a move to PHP >8 would cause a lot of heartburn for those users.
-
-The framework also supports PHP >8.
+> [!NOTE]
+> PHP 7.4 is supported because at the current time of writing (2024) PHP 7.4 is the default version for some LTS Linux distributions.
+> Forcing a move to PHP 8 would cause a lot of heartburn for those users.
+> The framework also supports PHP 8.
 
 # Roadmap
 

flight/Engine.php

@@ -24,8 +24,7 @@ use Psr\Container\ContainerInterface;
  * It is responsible for loading an HTTP request, running the assigned services,
  * and generating an HTTP response.
  *
- * @license MIT, https://docs.flightphp.com/license
- * @copyright Copyright (c) 2011-2025, Mike Cao <mike@mikecao.com>, n0nag0n <n0nag0n@sky-9.com>
+ * @copyright 2011-2026, Mike Cao https://mikecao.com, n0nag0n <n0nag0n@sky-9.com>
  *
  * @method void start()
  * @method void stop()
@@ -75,10 +74,7 @@ use Psr\Container\ContainerInterface;
  * @phpstan-method void json(mixed $data, int $code = 200, bool $encode = true, string $charset = "utf8", int $encodeOption = 0, int $encodeDepth = 512)
  * @phpstan-method void jsonHalt(mixed $data, int $code = 200, bool $encode = true, string $charset = 'utf-8', int $option = 0)
  * @phpstan-method void jsonp(mixed $data, string $param = 'jsonp', int $code = 200, bool $encode = true, string $charset = "utf8", int $encodeOption = 0, int $encodeDepth = 512)
- *
- * Note: IDEs will use standard @method tags for autocompletion, while PHPStan will use @phpstan-* tags for advanced type checking.
- *
- * phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
+ * @license https://docs.flightphp.com/license MIT
  */
 class Engine
 {
@@ -227,8 +223,24 @@ class Engine
             // which causes a lot of problems. This will be removed
             // in v4
             $self->response()->v2_output_buffering = $this->get('flight.v2.output_buffering');
-            // Propagate method override setting to Request
-            $self->request()::$allowMethodOverride = (bool) $self->get('flight.allow_method_override');
+
+            // Propagate method override setting to Request.
+            // Assign the static on the class first — do not call request() before this,
+            // or Request's constructor caches the method while the flag is still the default (true).
+            Request::$allowMethodOverride = (bool) $self->get('flight.allow_method_override');
+
+            // If a Request was already built earlier (common: apps touch request() before start)
+            // while override was still enabled, refresh the cached verb when override is off
+            // and an override input is present. When no override input exists, leave any
+            // intentional manual method assignment alone.
+            if (Request::$allowMethodOverride === false) {
+                $hasOverrideInput = Request::getVar('HTTP_X_HTTP_METHOD_OVERRIDE') !== ''
+                    || isset($_REQUEST['_method']);
+                if ($hasOverrideInput === true) {
+                    $request = $self->request();
+                    $request->method = Request::getMethod();
+                }
+            }
         });
 
         $this->initialized = true;

flight/Flight.php

@@ -15,7 +15,7 @@ use Psr\Container\ContainerInterface;
  * The Flight class is a static representation of the framework.
  *
  * @license MIT, https://docs.flightphp.com/license
- * @copyright Copyright (c) 2011-2025, Mike Cao <mike@mikecao.com>, n0nag0n <n0nag0n@sky-9.com>
+ * @copyright 2011-2026, Mike Cao https://mikecao.com, n0nag0n <n0nag0n@sky-9.com>
  *
  * @method static void start()
  * @method static void path(string $dir)
@@ -77,11 +77,8 @@ use Psr\Container\ContainerInterface;
  * @phpstan-method static void json(mixed $data, int $code = 200, bool $encode = true, string $charset = "utf8", int $encodeOption = 0, int $encodeDepth = 512)
  * @phpstan-method static void jsonHalt(mixed $data, int $code = 200, bool $encode = true, string $charset = 'utf-8', int $option = 0)
  * @phpstan-method static void jsonp(mixed $data, string $param = 'jsonp', int $code = 200, bool $encode = true, string $charset = "utf8", int $encodeOption = 0, int $encodeDepth = 512)
- *
- * Note: IDEs will use standard @method tags for autocompletion,
- * while PHPStan will use @phpstan-* tags for advanced type checking.
+ * @license https://docs.flightphp.com/license MIT
  */
-// phpcs:ignore PSR1.Classes.ClassDeclaration.MissingNamespace
 class Flight
 {
     /**

flight/core/Dispatcher.php

@@ -18,8 +18,8 @@ use TypeError;
  * allows you to hook other functions to an event that can modify the
  * input parameters and/or the output.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  * @phpstan-template EngineTemplate of object
  */
 class Dispatcher

flight/core/EventDispatcher.php

@@ -6,134 +6,83 @@ namespace flight\core;
 
 class EventDispatcher
 {
-    /** @var self|null Singleton instance of the EventDispatcher */
     private static ?self $instance = null;
 
-    /** @var array<string, array<int, callable>> */
+    /** @var array<string, callable[]> */
     protected array $listeners = [];
 
-    /**
-     * Singleton instance of the EventDispatcher.
-     *
-     * @return self
-     */
     public static function getInstance(): self
     {
         if (self::$instance === null) {
             self::$instance = new self();
         }
+
         return self::$instance;
     }
 
-    /**
-     * Register a callback for an event.
-     *
-     * @param string $event Event name
-     * @param callable $callback Callback function
-     */
     public function on(string $event, callable $callback): void
     {
-        if (isset($this->listeners[$event]) === false) {
-            $this->listeners[$event] = [];
-        }
+        $this->listeners[$event] ??= [];
         $this->listeners[$event][] = $callback;
     }
 
     /**
-     * Trigger an event with optional arguments.
-     *
-     * @param string $event Event name
-     * @param mixed ...$args Arguments to pass to the callbacks
-     *
+     * @param mixed ...$args Arguments to pass to the listeners.
      * @return mixed
      */
     public function trigger(string $event, ...$args)
     {
-        $result = null;
-        if (isset($this->listeners[$event]) === true) {
-            foreach ($this->listeners[$event] as $callback) {
-                $result = call_user_func_array($callback, $args);
-
-                // If you return false, it will break the loop and stop the other event listeners.
-                if ($result === false) {
-                    break; // Stop executing further listeners
-                }
+        $listenerReturnValue = null;
+
+        foreach ($this->getListeners($event) as $listener) {
+            $listenerReturnValue = $listener(...$args);
+
+            if ($listenerReturnValue === false) {
+                break;
             }
         }
-        return $result;
+
+        return $listenerReturnValue;
     }
 
-    /**
-     * Check if an event has any registered listeners.
-     *
-     * @param string $event Event name
-     *
-     * @return bool True if the event has listeners, false otherwise
-     */
     public function hasListeners(string $event): bool
     {
-        return isset($this->listeners[$event]) === true && count($this->listeners[$event]) > 0;
+        return (
+            isset($this->listeners[$event])
+            && is_array($this->listeners[$event])
+            && count($this->listeners[$event])
+        );
     }
 
-    /**
-     * Get all listeners registered for a specific event.
-     *
-     * @param string $event Event name
-     *
-     * @return array<int, callable> Array of callbacks registered for the event
-     */
+    /** @return callable[] */
     public function getListeners(string $event): array
     {
         return $this->listeners[$event] ?? [];
     }
 
-    /**
-     * Get a list of all events that have registered listeners.
-     *
-     * @return array<int, string> Array of event names
-     */
+    /** @return string[] */
     public function getAllRegisteredEvents(): array
     {
         return array_keys($this->listeners);
     }
 
-    /**
-     * Remove a specific listener for an event.
-     *
-     * @param string   $event    the event name
-     * @param callable $callback the exact callback to remove
-     *
-     * @return void
-     */
     public function removeListener(string $event, callable $callback): void
     {
-        if (isset($this->listeners[$event]) === true && count($this->listeners[$event]) > 0) {
-            $this->listeners[$event] = array_filter($this->listeners[$event], function ($listener) use ($callback) {
-                return $listener !== $callback;
-            });
-            $this->listeners[$event] = array_values($this->listeners[$event]); // Re-index the array
+        if (!$this->hasListeners($event)) {
+            return;
         }
+
+        $this->listeners[$event] = array_values(array_filter(
+            $this->getListeners($event),
+            static fn(callable $listener): bool => $listener !== $callback,
+        ));
     }
 
-    /**
-     * Remove all listeners for a specific event.
-     *
-     * @param string $event the event name
-     *
-     * @return void
-     */
     public function removeAllListeners(string $event): void
     {
-        if (isset($this->listeners[$event]) === true) {
-            unset($this->listeners[$event]);
-        }
+        unset($this->listeners[$event]);
     }
 
-    /**
-     * Remove the current singleton instance of the EventDispatcher.
-     *
-     * @return void
-     */
     public static function resetInstance(): void
     {
         self::$instance = null;

flight/core/Loader.php

@@ -13,8 +13,8 @@ use Exception;
  * instances with custom initialization parameters. It also performs
  * class autoloading.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  */
 class Loader
 {

flight/net/Request.php

@@ -11,8 +11,8 @@ use flight\util\Collection;
  * all the super globals $_GET, $_POST, $_COOKIE, and $_FILES
  * are stored and accessible via the Request object.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  *
  * The default request properties are:
  *

flight/net/Response.php

@@ -12,8 +12,8 @@ use flight\core\EventDispatcher;
  * contains the response headers, HTTP status code, and response
  * body.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  */
 class Response
 {

flight/net/Route.php

@@ -9,8 +9,8 @@ namespace flight\net;
  * an assigned callback function. The Router tries to match the
  * requested URL against a series of URL patterns.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  */
 class Route
 {

flight/net/Router.php

@@ -12,8 +12,8 @@ use flight\net\Route;
  * an assigned callback function. The Router tries to match the
  * requested URL against a series of URL patterns.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  */
 class Router
 {

flight/template/View.php

@@ -9,8 +9,8 @@ namespace flight\template;
  * methods for managing view data and inserts the data into
  * view templates upon rendering.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
+ * @license https://docs.flightphp.com/license MIT
  */
 class View
 {

flight/util/Collection.php

@@ -13,10 +13,10 @@ use JsonSerializable;
  * The Collection class allows you to access a set of data
  * using both array and object notation.
  *
- * @license MIT, http://flightphp.com/license
- * @copyright Copyright (c) 2011, Mike Cao <mike@mikecao.com>
+ * @copyright 2011 Mike Cao https://mikecao.com
  * @implements ArrayAccess<string, mixed>
  * @implements Iterator<string, mixed>
+ * @license https://docs.flightphp.com/license MIT
  */
 class Collection implements ArrayAccess, Iterator, Countable, JsonSerializable
 {

tests/EngineTest.php

@@ -23,11 +23,18 @@ class EngineTest extends TestCase
     public function setUp(): void
     {
         $_SERVER = [];
+        $_REQUEST = [];
+        $_GET = [];
+        $_POST = [];
+        // Static flag leaks across tests (and across Engine instances).
+        Request::$allowMethodOverride = true;
     }
 
     public function tearDown(): void
     {
         $_SERVER = [];
+        $_REQUEST = [];
+        Request::$allowMethodOverride = true;
     }
 
     public function testInitBeforeStart(): void
@@ -1207,4 +1214,170 @@ class EngineTest extends TestCase
         $this->expectExceptionMessage("/path/to/nowhere cannot be found.");
         $engine->download('/path/to/nowhere');
     }
+
+    /**
+     * Regression for GHSA method-override opt-out: setting the flag to false must
+     * prevent X-HTTP-Method-Override from selecting a different route.
+     *
+     * The original mitigation assigned Request::$allowMethodOverride via
+     * $self->request()::$allowMethodOverride, which built Request (and cached the
+     * overridden verb) before the static was set.
+     */
+    public function testAllowMethodOverrideFalseBlocksHeaderOverrideOnStart(): void
+    {
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['REQUEST_URI'] = '/test';
+        $_SERVER['SCRIPT_NAME'] = '/index.php';
+        $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] = 'DELETE';
+        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
+        $_SERVER['SERVER_NAME'] = 'localhost';
+        $_SERVER['HTTP_HOST'] = 'localhost';
+
+        $engine = new Engine();
+        $engine->set('flight.allow_method_override', false);
+
+        $hit = null;
+        $engine->route('GET /test', function () use (&$hit) {
+            $hit = 'get';
+            echo 'get';
+        });
+        $engine->route('DELETE /test', function () use (&$hit) {
+            $hit = 'delete';
+            echo 'delete';
+        });
+
+        $this->expectOutputString('get');
+        $engine->start();
+
+        $this->assertSame('get', $hit);
+        $this->assertFalse(Request::$allowMethodOverride);
+        $this->assertSame('GET', $engine->request()->method);
+    }
+
+    public function testAllowMethodOverrideFalseBlocksPostMethodFieldOnStart(): void
+    {
+        $_SERVER['REQUEST_METHOD'] = 'POST';
+        $_SERVER['REQUEST_URI'] = '/test';
+        $_SERVER['SCRIPT_NAME'] = '/index.php';
+        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
+        $_SERVER['SERVER_NAME'] = 'localhost';
+        $_SERVER['HTTP_HOST'] = 'localhost';
+        $_REQUEST['_method'] = 'PUT';
+
+        $engine = new Engine();
+        $engine->set('flight.allow_method_override', false);
+
+        $hit = null;
+        $engine->route('POST /test', function () use (&$hit) {
+            $hit = 'post';
+            echo 'post';
+        });
+        $engine->route('PUT /test', function () use (&$hit) {
+            $hit = 'put';
+            echo 'put';
+        });
+
+        $this->expectOutputString('post');
+        $engine->start();
+
+        $this->assertSame('post', $hit);
+        $this->assertSame('POST', $engine->request()->method);
+    }
+
+    public function testAllowMethodOverrideTrueStillHonorsHeaderOnStart(): void
+    {
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['REQUEST_URI'] = '/test';
+        $_SERVER['SCRIPT_NAME'] = '/index.php';
+        $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] = 'DELETE';
+        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
+        $_SERVER['SERVER_NAME'] = 'localhost';
+        $_SERVER['HTTP_HOST'] = 'localhost';
+
+        $engine = new Engine();
+        // default is true; set explicitly for clarity
+        $engine->set('flight.allow_method_override', true);
+
+        $hit = null;
+        $engine->route('GET /test', function () use (&$hit) {
+            $hit = 'get';
+            echo 'get';
+        });
+        $engine->route('DELETE /test', function () use (&$hit) {
+            $hit = 'delete';
+            echo 'delete';
+        });
+
+        $this->expectOutputString('delete');
+        $engine->start();
+
+        $this->assertSame('delete', $hit);
+        $this->assertTrue(Request::$allowMethodOverride);
+        $this->assertSame('DELETE', $engine->request()->method);
+    }
+
+    /**
+     * App code often touches request() before start() (set url, inspect headers, etc.).
+     * The flag must still win even when Request was constructed early under the default.
+     */
+    public function testAllowMethodOverrideFalseRefreshesMethodIfRequestBuiltEarly(): void
+    {
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['REQUEST_URI'] = '/test';
+        $_SERVER['SCRIPT_NAME'] = '/index.php';
+        $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] = 'DELETE';
+        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
+        $_SERVER['SERVER_NAME'] = 'localhost';
+        $_SERVER['HTTP_HOST'] = 'localhost';
+
+        $engine = new Engine();
+        $engine->set('flight.allow_method_override', false);
+
+        // Construct Request while static is still the default (true)
+        $this->assertTrue(Request::$allowMethodOverride);
+        $early = $engine->request();
+        $this->assertSame('DELETE', $early->method, 'pre-start construction still sees default override=on');
+
+        $hit = null;
+        $engine->route('GET /test', function () use (&$hit) {
+            $hit = 'get';
+            echo 'get';
+        });
+        $engine->route('DELETE /test', function () use (&$hit) {
+            $hit = 'delete';
+            echo 'delete';
+        });
+
+        $this->expectOutputString('get');
+        $engine->start();
+
+        $this->assertSame('get', $hit);
+        $this->assertFalse(Request::$allowMethodOverride);
+        $this->assertSame('GET', $engine->request()->method);
+        $this->assertSame($early, $engine->request(), 'same Request instance is refreshed, not replaced');
+    }
+
+    public function testAllowMethodOverrideFalseDoesNotClobberManualMethodWithoutOverrideInput(): void
+    {
+        // No X-HTTP-Method-Override / _method — manual method assignment must survive start().
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['REQUEST_URI'] = '/someRoute';
+        $_SERVER['SCRIPT_NAME'] = '/index.php';
+        $_SERVER['REMOTE_ADDR'] = '127.0.0.1';
+        $_SERVER['SERVER_NAME'] = 'localhost';
+        $_SERVER['HTTP_HOST'] = 'localhost';
+
+        $engine = new Engine();
+        $engine->set('flight.allow_method_override', false);
+        $engine->route('GET /someRoute', function () {
+            echo 'i ran';
+        }, true);
+        $engine->request()->method = 'HEAD';
+        $engine->request()->url = '/someRoute';
+
+        $this->expectOutputString('');
+        $engine->start();
+
+        $this->assertSame('HEAD', $engine->request()->method);
+    }
 }

tests/RequestTest.php

@@ -31,11 +31,15 @@ class RequestTest extends TestCase
         $_COOKIE = [];
         $_FILES = [];
 
+        // Static flag leaks across tests; always restore the framework default.
+        Request::$allowMethodOverride = true;
+
         $this->request = new Request();
     }
 
     protected function tearDown(): void
     {
+        Request::$allowMethodOverride = true;
         unset($_REQUEST);
         unset($_SERVER);
     }
@@ -127,6 +131,49 @@ class RequestTest extends TestCase
         $this->assertEquals('PUT', $request->method);
     }
 
+    public function testMethodOverrideDisabledIgnoresHeader(): void
+    {
+        Request::$allowMethodOverride = false;
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] = 'DELETE';
+
+        $request = new Request();
+
+        $this->assertSame('GET', $request->method);
+        $this->assertSame('GET', Request::getMethod());
+    }
+
+    public function testMethodOverrideDisabledIgnoresPostField(): void
+    {
+        Request::$allowMethodOverride = false;
+        $_SERVER['REQUEST_METHOD'] = 'POST';
+        $_REQUEST['_method'] = 'PUT';
+
+        $request = new Request();
+
+        $this->assertSame('POST', $request->method);
+        $this->assertSame('POST', Request::getMethod());
+    }
+
+    public function testMethodOverrideFlagMustBeSetBeforeConstruction(): void
+    {
+        // Documents the caching behavior: flipping the static after construct
+        // does not rewrite the already-cached $request->method.
+        $_SERVER['REQUEST_METHOD'] = 'GET';
+        $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] = 'DELETE';
+
+        Request::$allowMethodOverride = true;
+        $request = new Request();
+        $this->assertSame('DELETE', $request->method);
+
+        Request::$allowMethodOverride = false;
+        $this->assertSame('DELETE', $request->method, 'cached method is not auto-refreshed');
+        $this->assertSame('GET', Request::getMethod(), 'getMethod() respects the new flag');
+
+        $request->method = Request::getMethod();
+        $this->assertSame('GET', $request->method);
+    }
+
     public function testHttps(): void
     {
         $_SERVER['HTTPS'] = 'on';