Re: Validating form field text input to be a specificvariable type

Yeah, sometimes this is an annoying problem with PHP. Somehow, "", null, 0 and "0" is the same thing. The last two are considered empty() too. -William El mi? 07-04-2004 a las 16:34, Red Wingate escribió: > JFYI : > > var_dump ( '' == 0 ) eq TRUE > > William Lovaton wrote: > > > I don't think so, > > > > Wouldn't be better if ctype_digit() return false on an empty string?? > > any way an empty string is not a digit. > > > > This change will brake backward compatibility so it is not an option. > > > > if you look carefully the function that you propose is doing two things > > at once... at this level this is not a good idea. > > > > > > -William > > > > > > El mi? 07-04-2004 a las 12:39, Red Wingate escribió: > > > >>No, as this would be yet another line of source. Maybe get those guys > >>to add another function > >> > >>ctype_digit_and_not_empty(); > >> > >> -- red > >> > >>[...] > >> > >>>>* Thus wrote William Lovaton (williama_lovaton@coomeva.com.co): > >>>> > >>>>>or modify is_numeric() to explictly perform an integer validation: > >>>>>is_numeric(mixed value [, bool is_integer = false]) > >>>> > >>>>um.. ctype_digit(). > >>> > >>>Very nice! it works fine. The only issue is that it will return true if > >>>the parameter is an empty string (""). Nothing that an empty() > >>>can't > >>>fix. > >> > >>[...] > > > >