我已经面对这个问题了！无法从我的Docker/ReactPHP应用程序中的浏览器或 Postman 获得响应。
这是我的代码：
docker-compose.yaml

version: '3.8'

services:
  react_php_service2:
    container_name: react_php_service2
    build:
      context: .
      dockerfile: ./.docker/php/Dockerfile
    ports:
      - "8000:8000"
    extra_hosts:
      - "host.docker.internal:host-gateway"
    volumes:
      - ./reactphp:/app

Dockerfile

FROM php:8.0-alpine

COPY ./reactphp /app
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

COPY ./.docker/php/entrypoint.sh /entrypoint.sh

RUN ["chmod", "+x", "/entrypoint.sh"]

ENTRYPOINT /entrypoint.sh

CMD [ "php", "./app/server.php"]

entrypoint.sh

#!/bin/sh

cd app/
composer install
php server.php

server.php

require 'vendor/autoload.php';

use Psr\Http\Message\ServerRequestInterface;

$loop = React\EventLoop\Loop::get();

$server = new React\Http\HttpServer(function (ServerRequestInterface $request) {
    echo date('Y-m-d H:i:s') . ' ' . $request->getMethod() . ' ' . $request->getUri() . PHP_EOL;
    //return React\Http\Message\Response::plaintext("Hello World!\n");
    return new React\Http\Message\Response(200, ['Content-Type' => 'text/plain'], 'Hello, World!');
});

$socket = new React\Socket\SocketServer('127.0.0.1:8000', [], $loop);
$server->listen($socket);

echo 'Listening on ' . str_replace('tcp:', 'http:', $socket->getAddress()) . "\n";

$loop->run();

所以在Docker容器中，它工作得很好：Send requestGet response。
但它在浏览器或Postman中不起作用-容器之外的任何地方：Browser result。