Slim VS ext-openswoole

Slim is a micro PHP framework used for web development with 11.7k stars and 2k forks on GitHub. It has a simple and intuitive API development process. It is a micro-framework, meaning you only get a minimum of support for HTTP requests and forwarding requests to appropriate controllers. So the question is, why should you choose a micro-framework? Because it offers you flexibility and high extensibility.

Slim 4, a minimalistic PHP micro-framework, offers middleware support to easily add CORS headers. Middleware in Slim acts like a series of layers through which your app sends a request. One such layer can be responsible for adding CORS headers.

SlimPHP 3 Skeleton app shows this as well: https://github.com/slimphp/Slim-Skeleton/blob/3.1.8/public/index.php

How hard did you look? There are plenty out there. FastRoute, Phroute, based on FastRoute, with basic middleware, League/Route - routing with middleware, using FastRoute, PSR 7 & 15, Slim Framework, at it's core, it like League/Route, etc. None of these require a full framework to use.

You can have the container call in a config folder with a file called dependencies or how ever you want. A few existing examples of this is here - Slim calls this app/dependencies in this skeleton project and Odan's Skeleton has this as config/container in their project.

Maybe use this if you don't like to dive into bigger frameworks: https://www.slimframework.com/

Go for Slim: https://www.slimframework.com/

One such promising solution is Swoole, a high-performance networking framework that helps PHP applications handle server-side tasks more effectively.

its a PHP extension that gives PHP superpowers: https://github.com/swoole/swoole-src https://openswoole.com/

interesting project, will check it out, at a first look, I believe this project would benefit from OpenSwoole (https://openswoole.com/), as it greatly increases PHP app performance.

Unless you mean Asynchronous code? Yeah, there's something for that too

The good thing about it is all documentation is in english at https://openswoole.com

You probably want to look into https://openswoole.com

These can be performed concurrently in PHP with Swoole https://openswoole.com/

there is swoole (https://openswoole.com/) - which adds event loop and async and other cool things to php that nodejs fanboys think are only in nodejs. it's now extremely easy to write websockets server in php.