今天给大家推荐一个PHP源码阅读利器：PHPXref，可以很方便的看到函数定义的位置，类似于SourceInsight。

下载地址：http://sourceforge.net/projects/phpxref/

安装方法：

1. 直接解压phpxref.zip到目录a

2. 进入目录a，编辑phpxref.cfg文件，更改如下设置四项设置：SOURCE, OUTPUT, PROJECT, CHARSET

# The base directory containing all of your PHP code to be indexed
# This could just be a directory containing symlinks to the real directories
#SOURCE=C:\webserver\sites\www.myhost.com\htdocs
SOURCE=D:\http_root\answer

# The directory in which you'd like the output to be written
#OUTPUT=C:\phpxref\output
OUTPUT=D:\code_review\output

# Project name; something short
PROJECT=Answer

# Character set to specify for generated HTML
CHARSET=utf-8

参考：http://www.awflasher.com/blog/archives/1079