Git Hook to reject PHP syntax errors & any php that directly calls "error_log"

pre_commit

#!/bin/bash

PLATFORM='unknown'
UNAMESTR=`uname`
XARGS_EXIT=1
if [[ "$UNAMESTR" == 'Linux' ]]; then
   PLATFORM='linux'
   XARGS_EXIT=123
elif [[ "$UNAMESTR" == 'FreeBSD' ]]; then
   PLATFORM='freebsd'
   XARGS_EXIT=1
elif [[ "$UNAMESTR" == 'Darwin' ]]; then
   PLATFORM='osx'
   XARGS_EXIT=1
fi

echo $PLATFORM
echo $XARGS_EXIT
echo £UNAMESTR

# # Redirect output to stderr.
exec 1>&2

RED='\033[0;31m'
ERROR_TITLE='\033[1;33;41m'
YELLOW='\033[0;33m'
BLUE='\033[1;34m'
NC='\033[00m'

# Look for people using error_log
FILES_PATTERN='\.(php|inc)(\..+)?$'
FORBIDDEN='error_log'

if [[ `git diff --no-ext-diff --cached --name-only | grep -E "$FILES_PATTERN" | wc -l` -gt 0 ]]; then
	git diff --no-ext-diff --cached --name-only | \
	    grep -E "$FILES_PATTERN" | \
	    GREP_COLOR='41' xargs -I % grep --color --with-filename -n "$FORBIDDEN" %

	 if [[ $? -ne $XARGS_EXIT ]]; then
	 	echo
	 	echo -e "${ERROR_TITLE}COMMIT REJECTED:${YELLOW} Found ${BLUE}'$FORBIDDEN'${YELLOW}. Error logging MUST use syslog.${NC}"
	 	exit 1
	 fi
fi

git diff --no-ext-diff --cached --name-only | \
	grep -E "$FILES_PATTERN" | \
	xargs -I % php -l % | \
	grep -v "No syntax errors detected"

 if [[ $? -gt 1 ]]; then
 	echo
 	echo -e "${ERROR_TITLE}COMMIT REJECTED:${YELLOW} Found PHP syntax errors!. Please remove them before commiting"
 	exit 1
 fi