isNested Definition Arr::isNested(array $array): bool Description Check if any element of an array is also an array Examples Arr::isNested([]) -> false Arr::isNested([1, 2, 3]) -> false Arr::isNested([1, 2 => [], 3]) -> true Arr::isNested([1, 2 => [[[]]], 3 => []]) -> true