PHP Fatal error: Call to undefined function mssql_connect()

问题:

I've never used php before and am trying to connect to a SQL Server 2008 instance on a Windows machine running IIS7 and PHP5.3.

I have downloaded and installed SQLSRV30.EXE from here in C:\Program Files (x86)\PHP\ext added this to C:\Program Files (x86)\PHP\php.ini:

extension=php_sqlsrv_53_nts.dll 

Then restarted the entire server. I still get fatal errors in my log file saying:

PHP Fatal error:  Call to undefined function mssql_connect() 

What do I need to do to connect to Microsoft SQL Server 2008 from PHP 5.3 running on IIS7/Windows Server 2008? I'm sure it's something really dumb that I'm missing...

FULL PHPINFO --> http://demo.mandibleweb.com/zapified/hello.php

phpinfo():

PHP Version 5.3.10      System   Windows NT MWD001 6.1 build 7601 (Windows Server 2008 R2 Standard Edition Service Pack 1) i586     Build Date   Feb 2 2012 20:10:58     Compiler   MSVC9 (Visual C++ 2008)     Architecture   x86     Configure Command   cscript /nologo configure.js "--enable-snapshot-build" "--enable-debug-pack" "--disable-zts" "--disable-isapi" "--disable-nsapi" "--without-mssql" "--without-pdo-mssql" "--without-pi3web" "--with-pdo-oci=C:\php-sdk\oracle\instantclient10\sdk,shared" "--with-oci8=C:\php-sdk\oracle\instantclient10\sdk,shared" "--with-oci8-11g=C:\php-sdk\oracle\instantclient11\sdk,shared" "--with-enchant=shared" "--enable-object-out-dir=../obj/" "--enable-com-dotnet" "--with-mcrypt=static" "--disable-static-analyze"     Server API   CGI/FastCGI     Virtual Directory Support   disabled     Configuration File (php.ini) Path   C:\Windows     Loaded Configuration File   C:\Program Files (x86)\PHP\php.ini  

回答1:

I have just tried to install that extension on my dev server.

First, make sure that the extension is correctly enabled. Your phpinfo() output doesn't seem complete.

If it is indeed installed properly, your phpinfo() should have a section that looks like this:

If you do not get that section in your phpinfo(). Make sure that you are using the right version. There are both non-thread-safe and thread-safe versions of the extension.

Finally, check your extension_dir setting. By default it's this: extension_dir = "ext", for most of the time it works fine, but if it doesn't try: extension_dir = "C:\PHP\ext".

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EDIT given new info:

You are using the wrong function. mssql_connect() is part of the Mssql extension. You are using microsoft's extension, so use sqlsrv_connect(), for the API for the microsoft driver, look at SQLSRV_Help.chm which should be extracted to your ext directory when you extracted the extension.

回答2:

php.ini probably needs to read: extension=ext\php_sqlsrv_53_nts.dll

Or move the file to same directory as the php executable. This is what I did to my php5 install this week to get odbc_pdo working. :P

Additionally, that doesn't look like proper phpinfo() output. If you make a file with contents
<? phpinfo(); ?> and visit that page, the HTML output should show several sections, including one with loaded modules. (Edited to add: like shown in the screenshot of the above accepted answer)

回答3:

I am using IIS and mysql (directly downloaded, without wamp or xampp) My php was installed in c:\php I was getting the error of "call to undefined function mysql_connect()" For me the change of extension_dir worked. This is what I did. In the php.ini, Originally, I had this line

; On windows: extension_dir = "ext"

I changed it to:

; On windows: extension_dir = "C:\php\ext"

And it worked. Of course, I did the other things also like uncommenting the dll extensions etc, as explained in others remarks.

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