IIS Server - IIS6 and PHP, possible problems ??

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Author IIS6 and PHP, possible problems ??
Steve Grosz

2005-06-30, 6:01 pm

I've been hearing some rumors that IIS6 doesn't work well with PHP,
because IIS favors ASP.

Does anyone know if there is any truth to this rumor?

Thanks,
Steve
Kristofer Gafvert [MVP]

2005-06-30, 6:01 pm

IIS treats ASP and php equally, in the way that both are implemented as an
ISAPI extension. (PHP comes as a CGI as well, but i would not recommend
using that for performance reasons). IIS does not have any code such as:

If (This is ASP) Then
Run faster than other ISAPI extensions
End If

The difference between them would be the implementation. It could be that
the php developers have not fully understood the architecture of IIS 6.0,
and therefore their ISAPI extension is not as fast as the ASP ISAPI
Extension. (I am NOT in any way saying that it is true, it just an example
of why one ISAPI could be running faster than the other)

If php is not working well on IIS 6.0, it is not the fault of IIS nor that
IIS would favor ASP. It would be the code of the php ISAPI Extension that
is not working well on IIS 6.0, and the code needs to be changed. The
communication between IIS and the ISAPI extension is pretty simple[1].

I have however never heard that php is working bad on IIS 6.0.

[1] ISAPI Extension Overview, scroll down to "ISAPI Extension Processing
Sequence"
http://msdn.microsoft.com/library/e...7042c06a4b8.asp

--
Regards,
Kristofer Gafvert (IIS MVP)
www.gafvert.info - My Articles and help
www.ilopia.com


Steve Grosz wrote:

> I've been hearing some rumors that IIS6 doesn't work well with PHP,

because IIS favors ASP.
>
> Does anyone know if there is any truth to this rumor?
>
> Thanks,
> Steve

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