PHP pages come up blank

I just installed web plataform for PHP and MySQL. I have a website with PHP setup (which works on my production server) and when I open ANY page it just comes up blank. Nothing is displayed, no error, nothing.

What should I do ?

This happened with ASP before and I had to reinstall windows :(  .. my ASP sites show up just fine, its the PHP ones that show a blank screen.

Any clues ?
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AleksAsked:
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Nathan RileyFounderCommented:
Have you installed apache?  I don't see how you could view a php page without the webserver serving it.
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AleksAuthor Commented:
I am using IIS, it runs with IIS.
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Marco GasiFreelancerCommented:
Just relax, you don't have to reinstall Windows :-) Look here to set IIS in order to process Php pages: http://php.net/manual/en/install.windows.iis7.php
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AleksAuthor Commented:
It all looks good. All installed still not working
I used WebMatrix to install PHP, it is registered on IIS
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Marco GasiFreelancerCommented:
Oh, and have you used WebMatrix to install you application also?
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AleksAuthor Commented:
No. Its a simple page with one php page that says Hello, nothing to install
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Marco GasiFreelancerCommented:
Well, I use Apache, so I don't have no first hand experience, but I've found this:

By default WebMatrix and IIS Developer Express are not configured to run PHP even if PHP is already installed on the machine. To work this around  install any PHP application via WebMatrix UI. This way WebMatrix will configure IIS Developer Express to handle PHP requests. This is something that will be fixed in future releases of WebMatrix.

Tthe source is http://ruslany.net/2010/07/install-php-applications-with-webmatrix/.

Maybe you can find it useful.
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AleksAuthor Commented:
It works fine in my other computer  :(  ... sigh ! Ill try to follow those steps see if I can get anywhere.
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Marco GasiFreelancerCommented:
If all works fine in your other computers, then you have to think about what is different in this one: There should be something different...
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AleksAuthor Commented:
I know,  nothing that I can see or think of at this time. Same happened to me last time and I had to reinstall windows and then it worked, but am not doing that this time around.  Ill try the link you provided first.
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Marco GasiFreelancerCommented:
I really hope it will be useful: reinstall Windows is not a good solution. You might consider to switch to Apache for php application. I didn't try it, but I read there is no problem installing both IIS and Apache in the same machine, so you could use IIS for asp and Apache for Php.
If this could be a way, I suggest to install xampp: in just one setup it will install Apache, Php and MySql and you'll get all of them up and running without effort.
Good luck :-)
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Dave BaldwinFixer of ProblemsCommented:
There is Always a problem installing Apache and IIS on the same machine.  Apache has to run on a different port because IIS will hog port 80 on all IP addresses.

PHP runs just fine on IIS.  I have it running on IIS on 3 different computers here and on two different web hostings.  It's just a matter of setting it up right.
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AleksAuthor Commented:
But I did not install apache. This is running on IIS only.  And ASP pages, html pages work fine, but PHP pages don't work. I check the source and as soon as the PHP script starts the source code shows up blank. it just stops processing the page I guess.
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