A *really* simple git pre-commit-hook that lints all staged PHP files.

php-lint-pre-commit.sh

#!/bin/bash
stagedFiles=$(git diff-index --cached HEAD | grep ".php" | grep "^:" | sed 's:.*[DAM][ \\''t]*\([^ \\''t]*\):\1:g');
phpLintErrors=0
echo "PHP will now lint all the php staged files..."
echo ""
for file in $stagedFiles
do
	echo "PHP is linting $file..."; 
	echo ""
	php -l $file
	RETVAL=$?
	if [[ $RETVAL != 0 ]]
	then
		phpLintErrors=1
	fi
	echo ""
done

if [[ $phpLintErrors == 1 ]]
then
	echo ""
	echo "-----"
	echo "Please, correct the errors above. Commit aborted."
	echo "-----"
	exit 1
else
	exit 0
fi

I had to change .*[DAM] to [^/]*[DAM], otherwise it did not work with file names that contain capital D, A or M.

git diff-index --cached HEAD | grep ".php" | grep "^:" | cut -f2

git diff-index --cached HEAD --name-only | grep ".php"