Re: what's the best way to handle this?

I forgot to mention, you may need to finetune this: not every server gives exactly the same $SERVER values. When default is reached, the url is really wrong and you give them a nice scowling in the 404.html file. (A nice suggestion: "HEY!!!! You dumb pi3ce of sh1t3! Learn to type!!!!!!!!!!!!! Or do not bother to ever come here again. You are WASTING my bandwith!")

default:

        Header("Location: ".$basis."redirect/404.html");