http-message VS fig-standards

The following example shows how to create configuration for the HTTP factories, using the httpsoft/http-message package:

[HTTP Message](https://github.com/httpsoft/http-message). This package is a lightweight, fast, high-performance and strict implementation of the [PSR-7 HTTP Message](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-7-http-message.md) and [PSR-17 HTTP Factories](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-17-http-factory.md).

HTTP Message. This package is a lightweight, fast, high-performance and strict implementation of the PSR-7 HTTP Message and PSR-17 HTTP Factories.

The namespaces and class names must follow this example.

I would familiarize yourself with the following PHP standards: https://www.php-fig.org

The PHP Standard Recommendation, or PSR for short, from the aforementioned PHP-FIG.

That's what happens if you use a PSR-4 autoloader and not utilise PSR-4 in your project structure 👀 So either use PSR-0 or properly use PSR-4.

PHP really "got it's act together" in my view when packagist and composer (which are PHP's equivalent of npm) became mainstream and with the release of the PSR community standards. We were admittedly a little behind the curve with regards to package managers but with standardised formats and not having to copy and paste zip file libraries anymore, PHP received a new lease of life.