Why is the redirect not working properly?

Question

Yii

There is an init method in the controller with two almost identical pieces of code: one makes redirects for links with a plus code, and the second for links with a space code - all this is replaced with a regular plus sign and redirected to a link like site.ru/category+product. But only the redirect for a link with a space code works. For the plus code - 404, and it lands in the controller and even the redirect command works.

public function init()
    {
        parent::init();

        $url = Yii::$app->request->url;
        $host = Yii::$app->request->hostInfo;

        // redirect pages with %2B - plus
        if ((strpos($url, '%2B') !== false)) {
            $newUrl = str_replace('%2B', "+", $url);
            return $this->redirect($host.$newUrl, 301);
        }

        // redirect pages with %20 - space
        if ((strpos($url, '%20') !== false)) {
            $newUrl = str_replace('%20', "+", $url);
            return $this->redirect($host.$newUrl, 301);
        }
    }

What's the matter?

Answer 1

Where exactly do you insert the plus/space? If after the symbol "?", then everything works. If before - the router simply does not find a suitable controller.

Answer 2

check what you have in $urlwhen there is a plus. But it seems to me that this should be done in htaccess, but the start of the yii assembly. Why waste resources.