Re: Re: array_change_key_case()? key_exists()?

On Mon, 12 Nov 2001, Jeroen van Wolffelaar wrote: > the loop overhead itself. I'm now creating such a test, to see the real > difference. Which is quite impressive. On a 486 test machine, running 100 times this function over an array of 25 items with 6 character long keys, I get these results: array_change_key_case(), minus loop overhead: 0.1s foreach in userland, minus loop overhead: 0.95s Meaning that array_change_key_case is more than 9 times faster. Trying to track down where the performance issue is: the foreach loop itself: 0.41s the strtoupper alone: 0.15s (2.5 times more than array_change_keys()!) So the rest is probably in adding a key to an array, variable assiging, etc. There seems to be only one conclusion possible - array_change_key_case() is a lot faster than userland implementation. So there probably should be array_change_key_case() or an alternative to adress this performance issue, as it seems to be general php overhead causing this huge difference (runtime resolving of function calls, runtime resolving of variable names, etc etc). --Jeroen