Posted by ZeldorBlat on 02/12/06 00:55

Dave Mennenoh wrote:
> ...good one-liner...
>
> This is what I came up with:
>
> function isEmpty($array){
> return (count(array_filter($array)) == 0) ? 1 : 0;
> }
>
> returns 1 if all elements are "" otherwise it returns 0.
>
>
> --
> Dave -
> www.blurredistinction.com
> www.macromedia.com/support/forums/team_macromedia/

It really depends on what the OP means by "empty." The code above will
return 1 if the array only contains elements that evaluate to false.
Examples of things that evaluate to false: false, "", 0, null. So,
given the array (0, 0, 0) that function will return true.

If your definition of "empty" is really the empty string, you can make
a small change to Dave's function as such:

function isEmpty($array) {
$my_not_empty = create_function('$v', 'return strlen($v) > 0;');
return (count(array_filter($array, $my_not_empty)) == 0) ? 1 : 0;
}

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