Yii2 웹사이트의 URL에서 프런트엔드 및 백엔드 디렉터리를 숨기는 방법은 무엇입니까?

Options +FollowSymlinks
RewriteEngine On

# Handle admin URL separately
RewriteCond %{REQUEST_URI} ^/(admin)
RewriteRule ^admin/assets/(.*)$ backend/web/assets/ [L]
RewriteRule ^admin/css/(.*)$ backend/web/css/ [L]
RewriteCond %{REQUEST_URI} !^/backend/web/(assets|css)/
RewriteCond %{REQUEST_URI} ^/(admin)
RewriteRule ^.*$ backend/web/index.php [L]

# Handle frontend assets
RewriteCond %{REQUEST_URI} ^/(assets|css)
RewriteRule ^assets/(.*)$ frontend/web/assets/ [L]
RewriteRule ^css/(.*)$ frontend/web/css/ [L]
RewriteRule ^js/(.*)$ frontend/web/js/ [L]
RewriteRule ^images/(.*)$ frontend/web/images/ [L]

# Handle frontend
RewriteCond %{REQUEST_URI} !^/(frontend|backend)/web/(assets|css)/
RewriteCond %{REQUEST_URI} !index.php
RewriteCond %{REQUEST_FILENAME} !-f [OR]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^.*$ frontend/web/index.php

<code class="php">namespace common\components;

class Request extends \yii\web\Request {
    public $web;
    public $adminUrl;

    public function getBaseUrl() {
        return str_replace($this->web, "", parent::getBaseUrl()) . $this->adminUrl;
    }

    public function resolvePathInfo() {
        if ($this->getUrl() === $this->adminUrl) {
            return "";
        } else {
            return parent::resolvePathInfo();
        }
    }
}</code>

<code class="php">// frontend
'request' => [
    'class' => 'common\components\Request',
    'web' => '/frontend/web'
],

// backend
'request' => [
    'class' => 'common\components\Request',
    'web' => '/backend/web',
    'adminUrl' => '/admin'
],</code>

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?/ [L]