Wordpress and others use this to load certain on the fly. When you are a multidomain host this matters a lot. You don’t just load up a million cents as files a

Wordpress and others use this to load certain on the fly. When you are a multidomain host this matters a lot. You don’t just load up a million cents as files and restart the server (though I do know a company that does something like this, but man, quite brittle).