<?phpnamespace cmhc/Hcrail; class Hcrail{   /**   * callback function   * @var callable   */  protected static $callback;   /**   * match string or match regexp   * @var string   */  protected static $match;   protected static $routeFound = false;   /**   * deal with get,post,head,put,delete,options,head   * @param  $method   * @param  $arguments   * @return   */  public static function __callstatic($method, $arguments)  {    self::$match = str_replace("//", "/", dirname($_SERVER['PHP_SELF']) . '/' . $arguments[0]);    self::$callback = $arguments[1];    self::dispatch();    return;  }   /**   * processing ordinary route matches   * @param string $requestUri   * @return   */  public static function normalMatch($requestUri)  {    if (self::$match == $requestUri) {      self::$routeFound = true;      call_user_func(self::$callback);    }    return;  }   /**   * processing regular route matches   * @param string $requestUri   * @return   */  public static function regexpMatch($requestUri)  {    //處理正則表達式    $regexp = self::$match;    preg_match("#$regexp#", $requestUri, $matches);    if (!empty($matches)) {      self::$routeFound = true;      call_user_func(self::$callback, $matches);    }    return;  }   /**   * dispatch route   * @return   */  public static function dispatch()  {    if (self::$routeFound) {      return ;    }    $requestUri = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);    $requestMethod = $_SERVER['REQUEST_METHOD'];     if (strpos(self::$match, '(') === false) {      self::normalMatch($requestUri);    } else {      self::regexpMatch($requestUri);    }   }   /**   * Determining whether the route is found   * @return boolean   */  public static function isNotFound()  {    return !self::$routeFound;  } }