Laravel Valet - Changing valet php version
https://getgrav.org/blog/macos-mojave-apache-multiple-php-versions
https://stackoverflow.com/questions/40276967/uninstall-laravel-valet
https://laravel.com/docs/5.8/valet#installation
First make sure you have the php version you want to switch to
brew install php@7.2
brew unlink php@7.1 && brew link --force --overwrite php@7.2
Second, make sure you updated valet to the latest version.
sudo brew services stop nginx
sudo brew services stop dnsmasq
sudo brew services stop php@7.2
composer global remove laravel/valet
sudo rm -r ~/.valet
rm /usr/local/bin/valet
Now you can re-install valet and configure it to the new php
composer global require laravel/valet
valet install
valet restart
valet use php@7.2
valet use php
To check what php version you have installed
brew search php
To switch php version 7.2 back to 7.1
brew unlink php@7.2 && brew link --force --overwrite php@7.1