A domain without any extension throws a fatal error

[IvoMiranda]

Fatal error on line 27:
throw new \InvalidArgumentException("Invalid $domain syntax");

[akzhan]

And what's wrong?

[IvoMiranda]

There should be inbuilt validation not to throw fatal error. At least in my opinion of course.

[tomsommer]

This is correct behaviour.

[JayQ1982]

@IvoMiranda
Just but a try{ } catch{ } around the new Whois() and handle the exception as you want (i.e. display error message on screen).