Windows系统下升级PHP的MySQL客户端的方法_MySQL
Linux下升级PHP的MySQL客户端比较简单。Windows系统下如何操作呢？我这里只以MySQL4.0.x+PHP5为例(注：php4下的MySQL客户端升级需要修改的东西比较多，这里不描述)。
第一步，到http://downloads.mysql.com/snapshots.php下载你自己想升级的版本。
第二步，将下载包解压到一个目录，用VC打开里面的mysql.dsw文件。选择只编译libmysql release。然后编译将得到一个libmysql.dll、libmysql.lib。
第三步，将libmysql.dll拷贝到win32build/lib/dll文件夹里面覆盖，将libmysql.lib拷贝到win32build/lib文件夹里面覆盖。
第四步，将mysql/include下面的my_alloc.h、mysql.h、mysql_com.h、mysql_version.h、mysqld_error.h拷贝到win32build/include目录覆盖，将mysql/libmysql目录中的libmysql.def拷贝到win32build/include目录中。
第五步，重新编译PHP。安装php相关文件到相应目录中，将libmysql.dll拷贝到windows主目录(以2000中的winnt目录、2003的windows)目录中。
第六步，启动web服务器，看看phpinfo里面，是不是你的mysql库已经更新到最新版本？
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