Liberal Arts Major
For those of you who don't know, PHP 4, which I've been using for the last six years, is basically terrible. PHP 5 was released a long, long time ago, but with the hosting package I was using I was under the impression it was unavailable. The upgrade brings with it access to a number of cool things, like all this jazz as well as an object model that wasn't designed by meth addicts. Not that you will necessarily benefit from any of this.
So. There you go. If you see any weird errors that's because something isn't backwards compatible. Be sure to let me know about them.