The SQLSRV extension can be used on the following operating systems:
- Windows Server 2003 Service Pack 1
- Windows XP Service Pack 3
- Windows Vista Service Pack 1 or later
- Windows Server 2008
- Windows Server 2008 R2
- Windows 7
The SQLSRV extension requires that the Microsoft SQL Server 2008 R2 Native Client be installed on the same computer that is running PHP. If the Microsoft SQL Server 2008 R2 is not already installed, click the appropriate link below to download it:
The SQLSRV download comes with several driver files. Which driver file you use will depend on 3 factors: the PHP version you are using, whether you are using thread-safe or non-thread-safe PHP, and whether your PHP installation was compiled with the VC6 or VC9 compiler. For example, if you are running PHP 5.3, you are using non-thread-safe PHP, and your PHP installation was compiled with the VC9 compiler, you should use the php_sqlsrv_53_nts_vc9.dll file. (You should use a non-thread-safe version compiled with the VC9 compiler if you are using IIS as your web server). If you are running PHP 5.2, you are using thread-safe PHP, and your PHP installation was compiled with the VC6 compiler, you should use the php_sqlsrv_52_ts_vc6.dll file.
For more information about SQLSRV requirements, see » SQLSRV System Requirements.