Recently I formatted my laptop and installed a fresh copy of Windows 7 Home Basic 64bit, EasyPHP 12.1 (upgraded PHP to version 5.4.6), Microsoft SQL Server 2012 and the SQL Native Client Interface 64bit version as specified in the requirements on Microsoft's website. I have downloaded the Microsoft SQL drivers for PHP (a file SQLSRV30.exe) and copied files php_pdo_sqlsrv_54_ts.dll and php_sqlsrv_54_ts.dll to ext folder.
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Also added entries to php.ini
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I am using the thread safe version according to the snapshot file of EasyPHP, it says Build: C:\php-sdk\php54dev\vc9\x86\obj\Release_TS
Well phpinfo() does not show any support for Microsoft SQL Server! I have done this before and I know that it works. Can anyone help me out here, am I missing something from php.ini or somewhere else?
Thanks
Eventually I found the problem! I was modifying the wrong php.ini file!
A search for php.ini in C:\Program files(86)\EasyPHP-12.1 revealed 4 files! I decided to change the value of html_errors from On to Off in all of them just to see the effect in the output of php_info(). By trial and error I found that the correct php.ini to change is
C:\Program files(86)\EasyPHP-12.1\apache\php.ini
in there a line says
extension_dir = "C:\PROGRA~2\EASYPH~1.1\php\php546x130128105026\ext\"
so then I realised Apache's php.ini is fetching the DLL files from an outside folder, while I was modifying a different php.ini in directory
C:\Program Files (x86)\EasyPHP-12.1\php\php546x130128105026
which contains the ext folder! Well I was doing it wrong. I kept the two DLL files in that ext folder and added these two lines in Apache's php.ini
extension=php_sqlsrv_54_ts.dll extension=php_pdo_sqlsrv_54_ts.dll
so now EasyPHP can talk to Microsoft's SQL server as shown in the php_info() output.
来源：https://stackoverflow.com/questions/14631988/trying-to-install-mssql-drivers-with-easyphp-12