在WAMPSERVER下增加多版本的PHP（PHP5.3，PHP5.4，PHP5.5）支持。
WAMPServer可以让开发者在Windows系统下快速搭建WAMP环境，它支持多版本的Apache、MySQL、PHP之间的相互切换，互不影响，对于PHPer开发者来讲极为方便快速。
以下是在WAMPServer下同时支持PHP5.3、PHP5.4、PHP5.5、PHP5.6的步骤：
1、安装WAMPServer
根据自己的操作系统选择相应的WAMP版本，我这里选择WAMPSERVER-32 BITS & PHP 5.5-2.5，双击安装，选择安装目录即可，超级简单。
根据我安装的版本，这里已经默认安装了PHP5.5.12，如下图，可以发现多了两个特别文件：phpForApache.ini、wampserver.conf。
2、下载PHP二进制包
PHP目前提供PHP5.3、PHP5.4、PHP5.5、PHP5.6版本，因为我安装的是WAMPSERVER-32 BITS，所以对应的PHP版本只能是32位，到Windows PHP下载TS版本（Thread-Safe-VC9-X86）对应的PHP二进制ZIP包，并解压缩二进制包到WAMP安装目录，如D:\wamp_2\bin\php下。
3、增加PHP多版本支持
以我的安装目录为参照，拷贝php5.5.12下的wampserver.conf文件分别到PHP各版本目录；
以php5.6.3为例，拷贝目录下的php.ini-development并重命名为phpForApache.ini，根据自己要求修改phpForApache.ini里的PHP环境参数，保存退出；
以上完成了PHP5.6.3版本的添加，其它版本添加类似。
4、选择PHP运行环境
重新打开WAMPServer管理器，选择想要运行的PHP版本环境。
以上。
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