Calendar Cron Job PHP

We have an event calendar where people can choose to create events and choose whether it happens daily, weekly, monthly, etc. We had it working at one point, but then we switched servers and now the cron job doesn't exactly function. I've attached the PHP file which adds the events into the database. I'd like someone to tweak this to make sure our events are added into the database at the end of each day for recurring events. This is for the social network TheMOV - a non profit organization which helps people find success in life. This gig can lead to potential employment and other gigs. Thanks!