笔记本升级到了OS X 10.8了，但是偶尔还需要写点php调剂一下。看看自带的php版本?

PHP 5.3.13 with Suhosin-Patch (cli) (built: Jun 20 2012 17:05:20)

Copyright (c) 1997-2012 The PHP Group

Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies

对于追新族来说，必须得升级到php 5.4才开心。借助homebrew很快完成升级:

安装过程

两行即可。

brew tap josegonzalez/homebrew-php

brew install php54

这样安装的php路径在/usr/local/bin/php，版本信息：

/usr/local/bin/php -v

PHP 5.4.4 (cli) (built: Jul 27 2012 08:42:32)

Copyright (c) 1997-2012 The PHP Group

Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies