This post goes over how to change PHP version on macOS with Homebrew:
Prerequisites
Latest
Install the latest PHP version:
brew install php
Check the version:
php -v
PHP 8.2.1 (cli) (built: Jan 12 2023 02:29:10) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.2.1, Copyright (c) Zend Technologies
with Zend OPcache v8.2.1, Copyright (c), by Zend Technologies
Version
Install PHP 7.4:
brew install [email protected]
If you get the error:
Error: [email protected] has been disabled because it is a versioned formula!
Then find an unsupported version of PHP from shivammathur/php:
brew search php
And install the version:
brew install shivammathur/php/[email protected]
Link the version:
brew link [email protected]
If you get a symlink error, then unlink php:
brew unlink php
And link the version:
brew link [email protected]
Update your PATH in ~/.zshrc:
echo 'export PATH="/opt/homebrew/opt/[email protected]/bin:$PATH"' >> ~/.zshrc
echo 'export PATH="/opt/homebrew/opt/[email protected]/sbin:$PATH"' >> ~/.zshrc
source ~/.zshrc
Or ~/.bashrc:
echo 'export PATH="/opt/homebrew/opt/[email protected]/bin:$PATH"' >> ~/.bashrc
echo 'export PATH="/opt/homebrew/opt/[email protected]/sbin:$PATH"' >> ~/.bashrc
source ~/.bashrc
Check the version:
php -v
PHP 7.4.33 (cli) (built: Jan 21 2023 06:43:54) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.33, Copyright (c), by Zend Technologies
Revert
Change back to the latest PHP version:
brew unlink [email protected] && brew link php
Update your ~/.zshrc or ~/.bashrc:
-export PATH="/opt/homebrew/opt/[email protected]/bin:$PATH"
-export PATH="/opt/homebrew/opt/[email protected]/sbin:$PATH"
+export PATH="/opt/homebrew/opt/php/bin:$PATH"
+export PATH="/opt/homebrew/opt/php/sbin:$PATH"