JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbr> $keys */ public static function oneOf(array $keys, string $match): ?string { foreach ($keys as $key) { if (is_array($key) && static::oneOf($key, $match) !== null) { return $match; } elseif ($key === $match) { return $match; } } return null; } }