Паттерны в роутинге

/page/{value}

site_com/page/novosti_dny

<?php
 
// Route.php
 
namespace Core\Routing;
 
class Route
{
  private static $list = array();
  public static function add(\stdClass $routeElement) {
    self::$list[] = new self($routeElement);
  }
  public static function find($uri) {
    foreach (self::$list as $route) {
      if (1 === preg_match($route->uriTemplate, $uri, $matches)) {
    // preg_match('/^\/page\/(.+)$/', '/page/novosti_dny', $matches);
        $route->arguments = array_combine($route->names, array_slice($matches, 1));
        // array('value' => 'novosti_dny');
        return $route;
      }
    }
    return null;
  }
  private $uriTemplate;
  public $controller;
  public $arguments;
  private $names;
  private function __construct(\stdClass $routeElement)
  {
    $this->uriTemplate = $routeElement->when;
    $this->controller = $routeElement->then;
    $this->compile();
  }
  private function compile()
  { // /page/{value}
    $compiledUri = str_replace(
      array('/', '.', '[', ']'),
      array('\/', '\.', '(?:', ')?'),
      $this->uriTemplate
    );
    // \/page\/{value}
    preg_match_all('/\{(\w+)\}/', $compiledUri, $matches);
    $this->names = $matches[1]; // array('value');
    $compiledUri = preg_replace('/\{\w+\}/', '(.+)', $compiledUri);
    // \/page\/(.+)
    $this->uriTemplate = "/^{$compiledUri}$/";
    // /^\/page\/(.+)$/
  }
}

<?php
 
// index.php
 
require 'Core/Autoloader.php';
 
$uri_a = explode('?', $_SERVER["REQUEST_URI"]);
$uri = trim($uri_a[0], '/');
 
$autoloader = new Core\Autoloader();
$autoloader->register();
 
Core\Application::run($uri);