On 8/27/07, Ken Downs <[EMAIL PROTECTED]> wrote:
> "Michael B Allen" <[EMAIL PROTECTED]> wrote:
>
> > >
> > >
> > > Um, you could, uh, write a function called array_first() that does the
> > > reset() and then calls each()? Then maybe even calls reset() again?
> Then
> > > you could, like, maybe, only use this function and not make arbitrary
> use of
> > > each() and reset() in your code?
> >
> > I guess you missed my earlier post. This is what I'm using right now:
> >
> > function _array_first($a, $want_key=FALSE) {
> > foreach ($a as $key => $elem)
> > return $want_key ? $key : $elem;
> > return FALSE;
> > }
> >
> > > And btw, when you write that function, pass the array by reference, not
> by
> > > value.
>
> No, I caught your post, it's just that an experienced PHP programmer would
> never write the function you wrote to do what you're doing. They'd use
> each().
>
> Hint: read the manual to find find out why I told you to pass by reference,
> read the manual to find out what foreach does internally.
Hi Ken,
I appreciate your help but I don't have a lot of time for games. After
reading the manual for each() I see nothing to indicate that using
each() w/ reset() would be superior to the foreach() method I've been
using. The each() function already accepts references and AFAIK
runtime pass-by-reference is being deprecated anyway. Also, even if
there is something that would preserve the state of the array cursor,
that would suggest that a copy of the array would be made which could
be potentially very slow.
I'd very willing to accept direction as I spend a lot more time
writing C than I do PHP but I have to admit sometimes I have trouble
reading between the lines. If you still care to help please spell it
out for me why each() w/ reset() is superior to the foreach() method
I've been using.
Thanks,
Mike
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