解决子目录网站路由问题：使用Composer和middlewares/base-path优化请求路径

<code class="bash">composer require middlewares/base-path</code>

<pre class="brush:php;toolbar:false;"><?php

require 'vendor/autoload.php';

use Middlewares\BasePath;
use Middlewares\Utils\Dispatcher;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;

// 模拟一个简单的路由中间件
class MyRouter implements MiddlewareInterface
{
    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $path = $request->getUri()->getPath();

        // 假设我们的路由期望的是 /post/123
        if ($path === '/post/123') {
            $response = new \GuzzleHttp\Psr7\Response();
            $response->getBody()->write('Hello from /post/123!');
            return $response;
        }

        // 如果没有匹配，继续处理或者返回404
        return $handler->handle($request);
    }
}

// 假设你的应用部署在 /my-app 目录下
// Dispatcher::run 模拟了请求处理流程
$response = Dispatcher::run([
    new BasePath('/my-app'), // 设置要移除的基路径前缀
    new MyRouter(), // 你的应用路由中间件
    function (ServerRequestInterface $request) { // 默认处理，如果路由未匹配
        $response = new \GuzzleHttp\Psr7\Response(404);
        $response->getBody()->write('404 Not Found. Original Path: ' . $request->getUri()->getPath());
        return $response;
    }
], \GuzzleHttp\Psr7\ServerRequest::fromGlobals()->withUri(new \GuzzleHttp\Psr7\Uri('/my-app/post/123'))); // 模拟一个请求

echo $response->getBody(); // 输出：Hello from /post/123!

<pre class="brush:php;toolbar:false;"><?php
// ... (引入和Dispatcher等同上)

use GuzzleHttp\Psr7\Response;
use GuzzleHttp\Psr7\ServerRequest;
use GuzzleHttp\Psr7\Uri;

$response = Dispatcher::run([
    (new BasePath('/my-app'))->fixLocation(), // 启用修复Location头功能

    function () {
        // 你的应用返回一个重定向响应，Location头是相对路径
        return (new Response(301))->withHeader('Location', '/dashboard');
    }
], ServerRequest::fromGlobals()->withUri(new Uri('/my-app/any-path')));

// 检查响应头
echo $response->getHeaderLine('Location'); // 输出：/my-app/dashboard

<pre class="brush:php;toolbar:false;"><?php
// ... (引入和Dispatcher等同上)

$response = Dispatcher::run([
    (new BasePath('/my-app'))->attribute('original-uri-path'), // 将原始路径存入 'original-uri-path' 属性

    function (ServerRequestInterface $request) {
        $originalPath = $request->getAttribute('original-uri-path');
        $processedPath = $request->getUri()->getPath();

        $response = new \GuzzleHttp\Psr7\Response();
        $response->getBody()->write("Original Path: {$originalPath}\n");
        $response->getBody()->write("Processed Path: {$processedPath}\n");
        return $response;
    }
], \GuzzleHttp\Psr7\ServerRequest::fromGlobals()->withUri(new \GuzzleHttp\Psr7\Uri('/my-app/some/page')));

echo $response->getBody();
// 输出：
// Original Path: /my-app/some/page
// Processed Path: /some/page