> > In python comprehensions on [] makes a list and comprehensions in {}
> > make a dictionary (list and dict comprehensions). As PHP only has one
> > 'array' type using [] makes sense. Along that train of thought, should
> > comprehensions also be possible in the old array() syntax?
>
> Honestly, I cannot think of any case where I'd use a comprehension where I
> would definitely want an array and not a generator. In the majority case
> both work equally well, cool, but I don't know when I would even use an
> array-dependent version. And converting from a generator to an array is
> trivial; the other way, very not so much.
>
Would there be any notable performance difference? I'd expect the case
where one actually wanted the whole array to be slower if it was going
through a generator, vs a tight loop, due to the additional level of
indirection.
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