PHP without a framework

Instructions

Initialise composer project:

composer init

Create skeleton directory structure:

mkdir public src

Add dependencies:

 composer require php-di/php-di

Run composer to install dependencies and create vendor:

composer install

Create skeleton front controller at public/index.php

<?php

declare(strict_types = 1);

require_once __DIR__ . '/../vendor/autoload.php';

Create HelloWorld class in src/HelloWorld.php:

<?php

declare(strict_types = 1);

namespace MyApp;

class HelloWorld
{
  public function hello() : void
  {
    echo 'Hello World';
  }
}