mvc实现二级域名

blog.example.com. 3600 IN CNAME your_server_ip

<VirtualHost *:80>
    ServerName blog.example.com
    DocumentRoot /var/www/blog
    <Directory /var/www/blog>
        Options Indexes FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>

server {
    listen 80;
    server_name blog.example.com;
    root /var/www/blog;
    index index.html index.htm;

    location / {
        try_files $uri $uri/ =404;
    }
}

<?php
// index.php
require 'vendor/autoload.php';

$app = new \Slim\App();

$app->get('/', function ($request, $response, $args) {
    return $response->write('Hello, World!');
});

$app->run();

RewriteEngine On
RewriteCond %{HTTP_HOST} ^([^.]+)\.example\.com$ [NC]
RewriteRule ^ - [E=SUBDOMAIN:%1]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [L]

<?php
// Controller/ExampleController.php
namespace App\Controller;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;

class ExampleController
{
    public function index(Request $request, Response $response, array $args): Response
    {
        $subdomain = $request->getAttribute('SUBDOMAIN');
        return $response->write("Hello, {$subdomain}!");
    }
}