Question

Is there any way to set the usual php.ini variables on an IIS 7.5 server, using web.config files? I’d like to set short_open_tag and environment variables.

Answer 1

<fastCgi>
  <application fullPath="C:\PHP\php-cgi.exe">
    <environmentVariables>
        <environmentVariable name="PHPRC" value="C:\WebSites\website1" />
    </environmentVariables>
  </application>
  <application fullPath="C:\PHP\php-cgi.exe">
    <environmentVariables>
        <environmentVariable name="PHPRC" value="C:\WebSites\website2" />
    </environmentVariables>
  </application>
</fastCgi>

Or as http://ruslany.net/2009/07/per-site-php-configuration-with-php-5-3-and-iis/ says, add user_ini.filename = .user.ini to php.ini and drop .user.ini files in the root of the sites.