Upgrade PHP and change PATH

Upgrading with Homebrew (Mac)

You can check the current PHP version  and PATH by running:

which php

Start by making sure brew is up-to-date:

brew update

Next, upgrade PHP. You can either use the built-in php recipe, use tap shivammathur/homebrew-php. I'd recommend the second approach, since it allows you to easily install several PHP versions and switch between them.

Normal upgrade

brew upgrade php

Upgrade with shivammathur/homebrew-php

brew tap shivammathur/php
brew install shivammathur/php/php@8.1

To switch between versions, use the following command:

brew link --overwrite --force php@8.1

source

Upgrading on Windows

Coming soon!