How to check if a multidimensional array is empty or not?

Question

Basically, I have a multidimensional array, and I need to check whether or not it is simply empty, or not.

I currently have an if statement trying to do thi

Answer 1

If you don't know the structure of the multidimensional array

public function isEmpty(array $array): bool
{
    $empty = true;

    array_walk_recursive($array, function ($leaf) use (&$empty) {
        if ($leaf === [] || $leaf === '') {
            return;
        }

        $empty = false;
    });

    return $empty;
}

Just keep in mind all leaf nodes will be parsed.