That can't possibly be true. I refuse to believe it.
I'm more inclined to believe Rasmus is trolling here. Sure, he used strlen, but it's too hard to believe functions were named with this in mind.
I mean, I may understand keeping the strange array-is-a-hash thingy, but changing function names is easy.
( used in the dictionary sense, not in the able-ist sense)
So yeah, it's true :).