编写此Symfony2 URL重定向的更好方法

Question

这很有效，但很麻烦。我一直在搞乱参数包，但没有什么比我的代码更好。

我只是想重定向到同一页面并删除查询字符串，但要比它更好地编码：

$r = $this->request;

$url = $r->getUri();

$replace = "abc=" . $r->query->get( 'abc' );
$url = str_replace("?".$replace, "?", $url);
$url = str_replace("&".$replace, "", $url);

$response = new RedirectResponse($url);
$this->event->setResponse($response);

Answer 1

删除整个查询字符串：

$response = new RedirectResponse($request->getPathInfo());

仅从查询字符串中删除参数：

$route  = $request->get('_route');
$params = array_merge(
    $request->get('_route_params'), 
    $request->query->all()
);

unset($params['param_to_remove']);
// or $params['param_to_remove'] = null;

$response = new RedirectResponse($this->router->generate($route, $params);