getid3_lib::array_merge_noclobber( mixed $array1, mixed $array2 ): array|false

552	public static function array_merge_noclobber($array1, $array2) {553		if (!is_array($array1) || !is_array($array2)) {554			return false;555		}556		$newarray = $array1;557		foreach ($array2 as $key => $val) {558			if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) {559				$newarray[$key] = self::array_merge_noclobber($newarray[$key], $val);560			} elseif (!isset($newarray[$key])) {561				$newarray[$key] = $val;562			}563		}564		return $newarray;565	}