Cambiar PHP en MAC con brew y poder cambiar con versiones

Ver version actual

php -v

Instalar version 8.3 

https://php.watch/articles/php-8.3-install-upgrade-on-macos-homebrew

# Add the PHP and PHP Extension taps
brew tap shivammathur/php
brew tap shivammathur/extensions

# Install PHP 8.3
brew install shivammathur/php/php@8.3

# Link PHP 8.3 CLI executable as `php`
brew link --overwrite --force shivammathur/php/php@8.3

# Test installation
php -v

Cambiar la version en php con brew

https://stackoverflow.com/questions/34909101/how-can-i-easily-switch-between-php-versions-on-mac-osx

brew unlink php@7.4
brew link php@7.3

brew unlink php@7.4
brew install php@7.3
brew link php@7.3

brew install brew-php-switcher

then brew-php-switcher version

for example brew-php-switcher 7.4