Pre-commit hook for git with phpcs and phpcbf (auto-correct obvious violations)

pre-commit

#!/bin/sh
 
PROJECT=`php -r "echo dirname(dirname(dirname(realpath('$0'))));"`
STAGED_FILES_CMD=`git diff --cached --name-only --diff-filter=ACMR HEAD | grep \\\\.php`
 
# Determine if a file list is passed
if [ "$#" -eq 1 ]
then
	oIFS=$IFS
	IFS='
	'
	SFILES="$1"
	IFS=$oIFS
fi
SFILES=${SFILES:-$STAGED_FILES_CMD}
 
echo "Checking PHP Lint..."
for FILE in $SFILES
do
	php -l -d display_errors=0 $PROJECT/$FILE
	if [ $? != 0 ]
	then
		echo "Fix the error before commit."
		exit 1
	fi
	FILES="$FILES $PROJECT/$FILE"
done
 
if [ "$FILES" != "" ]
then
	echo "Running Code Sniffer..."
	./bin/phpcs --standard=PSR2 --encoding=utf-8 -n -p $FILES
	if [ $? != 0 ]
	then
		echo "Coding standards errors have been detected. Running phpcbf..."
		./bin/phpcbf --standard=PSR2 --encoding=utf-8 -n -p $FILES
		git add $FILES
		echo "Running Code Sniffer again..."
		./bin/phpcs --standard=PSR2 --encoding=utf-8 -n -p $FILES
		if [ $? != 0 ]
		then
			echo "Errors found not fixable automatically"
			exit 1
		fi
	fi
fi
 
exit $?

then leave it out :-)
I would always do a phpcs after phpcbf, because you might only want to have an error code thrown when not all files could be fixed automatically and no error code when it was automatically fixed.