Final Class Yiisoft\Db\Helper\DbUuidHelper

                public static function isValidHexUuid(string $uuidString): bool
{
    return (bool) preg_match('/^[0-9a-f]{32}$/i', $uuidString);
}

            

                public static function isValidUuid(string $uuidString): bool
{
    return (bool) preg_match('/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i', $uuidString);
}

            

                public static function toUuid(string $blobString): string
{
    if (self::isValidUuid($blobString)) {
        return $blobString;
    }
    if (strlen($blobString) === 16) {
        $hex = bin2hex($blobString);
    } elseif (strlen($blobString) === 32 && self::isValidHexUuid($blobString)) {
        $hex = $blobString;
    } else {
        throw new InvalidArgumentException('Length of source data is should be 16 or 32 bytes.');
    }
    return
        substr($hex, 0, 8) . '-'
        . substr($hex, 8, 4) . '-'
        . substr($hex, 12, 4) . '-'
        . substr($hex, 16, 4) . '-'
        . substr($hex, 20)
    ;
}

            

                public static function uuidToBlob(string $uuidString): string
{
    if (!self::isValidUuid($uuidString)) {
        throw new InvalidArgumentException('Incorrect UUID.');
    }
    return (string) hex2bin(str_replace('-', '', $uuidString));
}