SplFixedArray::fromArray( array $array, bool $save_indexes = true ): SplFixedArray

56    public static function fromArray(array $array, $save_indexes = true)57    {58        $self = new SplFixedArray(count($array));59        if($save_indexes) {60            foreach($array as $key => $value) {61                $self[(int) $key] = $value;62            }63        } else {64            $i = 0;65            foreach (array_values($array) as $value) {66                $self[$i] = $value;67                $i++;68            }69        }70        return $self;71    }