I don't know much about PHP, but you all seem to.

I'm working on a site for a school district. They would like to install an application that allows certain students to update several calendars. I've found and used a great PHP app for this in the past, but that's where I run into trouble. The school district hosts their own site and doesn't have PHP installed on the server. When I asked the administrator to install PHP he doesn't want to becasue they are running MS Exchange on the same server and said it will open the email server up to vulnerabilities.

Will installing PHP cause a problem really? Am I just stuck?

Thanks guys! Sorry if it's a dumb question...I'm at a loss.