/** * Get a flattened array of the items in the collection. * * @param int $depth * @return static */ public function flatten($depth = INF) { return new static(Arr::flatten($this->items, $depth)); }
/** * Flatten a multi-dimensional array into a single level. * * @param array $array * @param int $depth * @return array */ function array_flatten($array, $depth = INF) { return Arr::flatten($array, $depth); }