第一步 下载 http://www.microsoft.com/en-us/download/details.aspx?id=20098
[PHP_PDO_SQLSRV]
extension=php_pdo_sqlsrv_54_ts.dll
[PHP_SQLSRV]
extension=php_sqlsrv_54_ts.dll
第二步 下载 http://www.cr173.com/soft/83655.html
php5.4window下连接mssql,布布扣,bubuko.com
原文：http://www.cnblogs.com/lytian/p/3880560.html