PHP Implimentation for Twitter API

I have some twitter automation software that works great, but I need to know how to install it for multiple accounts. Right now its running for one account based off a preferences file - but its running on someone else's machine. I need some basic help finding a webhost that can run it, and learning how to make multiple copies work at once. Its written in PHP and relies on a cron to automate actions at set intervals. I know how to code in some languages, but this is past my knowledge base. Should be REALLY easy for anyone who knows this stuff. Thanks! -Steve