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Editorial Team
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Asked: 2026-05-15T10:35:55+00:00

I’ve been struggling with this for a while now and I don’t know what

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I’ve been struggling with this for a while now and I don’t know what I’m missing. The error is:

call to undefined function mssql_connect()

Having looked into it already, I’ve done about everything I can.

  • I moved the php.ini file to c:\windows

  • In the ini I changed the extension_dir directive to c:PHP\ext and uncommented:

    extension = php_mssql.dll
  • I moved the dll file to c:windows\system32\
  • I downloaded the 200.80.194.0 version of ntwdblib.dll and placed it in c:\windows\system32
  • I restarted my web server client

PHP is still not recognizing the function and library classes. I’m stumped as to what I didn’t do right and would love some help. If it’s helpful, I’m running PHP 5.3.2, IIS, and Microsoft SQL Server 2008.

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1 Answer

  1. Editorial Team

    For SQL Server 2008 on Windows it’s sqlsrv_connect This is because Microsoft now uses the SQL Driver for PHP which is now on version 2.0 I believe.

    Also it’s worth noting that with sqlsrv_query, and mssql_query they switched the parameters around (spent half an hour figuring that out).

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