public function v4x2(bool $optimize = true): string
    {
        $uuid1 = UuidGen::uuid4()->toString();
        $uuid2 = UuidGen::uuid4()->toString();

        return $optimize ? str_replace('-', '', $uuid1.$uuid2) : $uuid1.'-'.$uuid2;
    }
public function v4x2(bool $optimize = true): string
    {
        $uuid1 = UuidGen::uuid4()->toString();
        $uuid2 = UuidGen::uuid4()->toString();

        return $optimize ? str_replace('-', '', $uuid1.$uuid2) : $uuid1.'-'.$uuid2;
    }
public function v4x2 ( bool $ optimize = true ) : string { $ uuid1 = UuidGen :: uuid4 ( ) -> toString ( ) ; $ uuid2 = UuidGen :: uuid4 ( ) -> toString ( ) ; return $ optimize ? str_replace ( '-' , '' , $ uuid1 . $ uuid2 ) : $ uuid1 . '-' . $ uuid2 ; }
UUID v4 generator x 2.

@since 170824.30708 Initial release.

@param bool $optimize Optimize?

@return string Version 4 UUID x 2 (64 bytes optimized).
Or 73 bytes unoptimized; i.e., w/ dashes + one extra.
UUID v4 generator x 2 .