Upgrading Skeleton to PHP 8.2

[JimTools]

Updating the skeleton to user PHP 8.2+ and updating to some of the newer language features.

closes #344

[carlosmintfan]

Hmm, but what if somebody wants to create a new app that should also be compatible with older PHP versions?

[carlosmintfan]

This way, people like me, using PHP 8.1, will be required to use the old version because this version only permits use starting with PHP 8.3. Although all or most of the changes you made are compatible with PHP 8.0.

[JimTools]

I'd like to point out that you are on borrowed time with 8.1 as it went out of active support ~5 months ago Supported Versions. Looking at other popular frameworks they have also drop support for 8.1. So i can see the value in supporting PHP 8.2+

As for exisiting projects this doesn't change much as the chanages do not affect the underlying framework only new projects created via composer create-project slim/slim-skeleton

• Laravel Composer
• Symfony Composer

[carlosmintfan]

Well, that's stupid. 8.1 is the package manager version in Ubuntu Jammy (22.04). If there are newer Ubuntu versions, I can't upgrade because I'm using Linux Mint. It's bad that we have these great package managers but then have to wait to get newer versions – or use PPAs or build PHP or whatever. Well, Mint 22 should come out soon, with a new Ubuntu base. But 8.1 still gets security fixes so the skeleton...ah, readonly is new in 8.2 so we can't use it in 8.1. Well, okay, will hopefully hop on to 8.3 in next Ubuntu base. 😅

[JimTools]

@carlosmintfan you might want to consider looking into docker if your developing locally, it’s very neat and decouples config from your development environment.