Run husky after any commit, it will run php cs fixer only on the staged files and let you test before committing the formatted verison

post-commit

#!/usr/bin/env sh
. "$(dirname -- "$0")/_/husky.sh"

git diff --name-only HEAD~1..HEAD | grep '\.php$' | xargs ./tools/php-cs-fixer/vendor/bin/php-cs-fixer fix --config=my_config.php_cs.dist

# You should create a file named "post-commit" in your ".husky" directory
# Change the "my_config.php_cs.dist" by your config file

# Or use this one to exlude "vendor" and "tools" directories
# git diff --name-only HEAD~1..HEAD | grep '\.php$' | grep -Ev '^vendor/|^tools/' | xargs ./tools/php-cs-fixer/vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.dist.php

# DON'T FORGET TO RUN "chmod ug+x .husky/*" to make husky files executable
# If you want, you can also directly run this command instead of creating manually the file
npx husky add .husky/post-commit "git diff --name-only HEAD~1..HEAD | grep '\.php$' | grep -Ev '^vendor/|^tools/' | xargs ./tools/php-cs-fixer/vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.dist.php"