[Q] Compatibility issues using Apache and/or IIS

First I'm very new to all this, so forgive the naivity of these questions: Anyway, I am building a WEB Site dev environment that supports PHP-MySQL development. I have both IIS and Apache WEB servers available for local testing which begs the following question: What are the factors that would influence my choosing IIS over Apache or vice-versa? If I develop and test against a local Apache server, will I run into problems when uploading to a site that uses IIS? What about using a local IIS server and uploading to an Apache site? Thanks in advance. Michael