如何刷新页面,更改GET字符串的一个参数?
说我在这个页面上:
/my/page?foo=bar&asd=qwe
在控制器中,我有这个变量:
$var = array('foo' => 'woof');
如何使用该变量重定向到此页面?:
/my/page?foo=woof&asd=qwe
或者如果我在这个页面上:
/my/page
使用该变量,我该如何访问此页面?:
/my/page?foo=woof
答案 0 :(得分:2)
如果我理解得很好,你想要做的是:
public function myAction()
{
$request = $this->getRequest();
$params = $request->query->all(); // get the original GET parameters
$var = array('foo' => 'woof');
$newParams = array_replace($params, $var); // only replaces the 'foo' parameter, keeping the rest as is
$url = '/my/page?'.http_build_query($newParams); // you can also use $this->generateUrl() if you use routing (which would be a good idea)
return $this->redirect($url);
}
答案 1 :(得分:0)
public function onKernelRequest(GetResponseEvent $event) {
$request = $event -> getRequest();
$routes = $this -> router -> getRouteCollection();
$routeName = $request -> get("_route");
$params = $request -> query -> all();
$route = $routes -> get($routeName);
preg_match_all("/{(.+)}/", $route -> getPattern(), $routeParams);
$routeParams = $routeParams[1];
foreach ($routeParams as $key => $value) {
$params[$value] = $request -> get($value);
}
if (array_key_exists("to_remove", $params)) {
unset($params['to_remove']);
$url = $this -> router -> generate($routeName, $params);
$event -> setResponse(new RedirectResponse($url));
}
}