最近在工作中遇到的一个问题就是PHP程序的调试，PHP的程序可以直接在页面中显示出错误信息，但是如果是较大较复杂的程序，这种方式的开发效率就极其低下了，那么如何在IDE中可以对程序进行单步调试呢？
问题：如何在Wamp下单步调试PHP程序？
1, 确保机子已经安装了Wamp。
假设www的目标路径为：D:\PHPProject\wamp\www(其中D:\PHPProject\wamp\是wamp的根目录)
2, 下载EPP3.0 (EclipsePHP Studio 3)
下载地址：php100.com/">http://www.php100.com/
3, 解压和安装EPP3.0
并把默认workspace设置为D:\PHPProject\wamp\www
4, 下载zendDebugger：
http://downloads.zend.com/pdt/server-debugger/
下载版本：ZendDebugger-5.2.14-cygwin_nt-i386
解压，找到文件夹5_2_x_comp\ 和dummy.php
5, 将5_2_x_comp\ZendDebugger.dll复制到D:\PHPProject\wamp\bin\php\php5.2.9-1\ext下
6, 将dummy.php复制到D:\PHPProject\wamp\www下
7, 修改php.ini,在php.ini的后面加入：
[zend]
zend_extension_ts="D:\PHPProject\wamp\bin\php\php5.2.9-1\ext\ZendDebugger.dll"
zend_debugger.allow_hosts=127.0.0.1
zend_debugger.expose_remotely=always
其中zend_extension_ts定位到你的ZendDebugger.dll文件
zend_debugger.allow_hosts定位到你的server上，localhost默认为127.0.0.1
8, 打开或者重新启动EPP3.0,窗口—首选项—PHP—Debug—Install Debugger—Zend debugger—Configure
设置client Host/IP为127.0.0.1
9, 创建新的php工程和文件，工具栏上有个调试（小虫子）—
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