Re: [PHP] check if any element of an array is not "empty"

2008/4/30 Nathan Nobbe <[email protected]>:
> On Wed, Apr 30, 2008 at 2:58 PM, Richard Heyes <[email protected]> wrote:
>
>  > but I was thinking if there is the function does that.
>  >>
>  >
>  > array_filter(). Note this:
>  >
>  > "If no callback is supplied, all entries of input equal to FALSE (see
>  > converting to boolean) will be removed."
>  >
>  > http://uk3.php.net/manual/en/function.array-filter.php
>
>
>  i dont really see how that gets him the answer without at least checking the
>  number of elements in the array after filtering it w/ array_filter;

Because an empty array evaluates to false when cast to bool (which is
implicit in a conditional).

So this should work fine:

if (array_filter($myArray)) {
  // only do this if there's stuff worth bothering with in myArray
}