Expose the reason for a number being invalid

[Tux]

It would be awesome is there would be a method or a global that enables me to see the reason for a number not being valid (invalid country code, too long, too short, invalid area code, invalid characters, ...)

[DrHyde]

Yes, it would!

I don't particularly like globals or extra methods for seeing why something failed, so what do you think about using objects that:

• numify as 0;
• stringify as "0" (just in case someone is mis-using the return value);
• boolify as false

and have a reason() method that would return one of a documented set of constants?

Or am I over-thinking this and should just suck up a bit of ugliness?

[Tux]

FINE WITH ME!
(capitalized to show enthusiasm)