# Redirect everything that doesn't match a directory or file to index.php
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule .* index.php [L]
<?php
// Define a couple of simple actions
class Home {
public function GET() { return 'Homepage'; }
}
class About {
public function GET() { return 'About page'; }
}
// Mapping of request pattern (URL) to action classes (above)
$routes = array(
'/' => 'Home',
'/about' => 'About'
);
// Match the request to a route (find the first matching URL in routes)
$request = '/' . trim($_SERVER['REQUEST_URI'], '/');
$route = null;
foreach ($routes as $pattern => $class) {
if ($pattern == $request) {
$route = $class;
break;
}
}
// If no route matched, or class for route not found (404)
if (is_null($route) || !class_exists($route)) {
header('HTTP/1.1 404 Not Found');
echo 'Page not found';
exit(1);
}
// If method not found in action class, send a 405 (e.g. Home::POST())
if (!method_exists($route, $_SERVER["REQUEST_METHOD"])) {
header('HTTP/1.1 405 Method not allowed');
echo 'Method not allowed';
exit(1);
}
// Otherwise, return the result of the action
$action = new $route;
$result = call_user_func(array($action, $_SERVER["REQUEST_METHOD"]));
echo $result;
這通常是透過將所有請求路由到單一入口點(根據請求執行不同程式碼的檔案)來完成的,規則如下:
然後,該檔案將請求(
$_SERVER["REQUEST_URI"]
) 與路由清單進行比較- 與請求匹配的模式到控制器操作(在MVC 應用程式中)或其他操作的映射執行路徑。框架通常包含一個可以從請求本身推斷控制器和操作的路由,作為備份路由。一個簡單的小例子:
與第一個配置結合,這是一個簡單的腳本,允許您使用像
domain.com/about
這樣的 URL。希望這可以幫助您了解這裡發生的事情。