Homebrewでインストールしたphp53とphp54を切り替える

gistfile1.sh

#!/bin/bash

if [ ! -x `which brew` ]; then
  echo "Homebrew does not installed."
  exit 1
fi

php_path=`which php`
php_real_path=`stat -F $php_path`

if   [ -n "`echo $php_real_path | grep 'Cellar/php53'`" ]; then
  echo 'now switching php53 -> php54...'
  brew unlink php53
  brew link   php54
elif [ -n "`echo $php_real_path | grep 'Cellar/php54'`" ]; then
  echo 'now switching php54 -> php53...'
  brew unlink php54
  brew link   php53
else
  echo 'can not switch php'
  exit 1
fi