Hi Philip,
By definition, any string that does not contain
alpha-characters is numeric. I mean, '123' is an
integer, if only because it isn't 'onetwothree', you
know?
Because if I do this:
$num1 = '123';
$num2 = '456';
$total = $num1 + $num2;
print($total);
the total is going to be 579. You know?
I guess I'm not following you. Maybe if you give me
the problem in context I can help.
-dj
--- Philip Olson <[EMAIL PROTECTED]> wrote:
>
> Hi Daniel,
>
> No, I mean if it's numeric, not neccesarily an
> integer. As the following
> is numeric and not an integer but rather, a string :
>
>
> $num = '123';
>
> Anyone have an authoritative answer on this? Like,
> something that would
> go in the manual as the official php3 is_numeric
> check?
>
> Regards,
> Philip
>
>
> On Tue, 28 Aug 2001, daniel james wrote:
>
> > do you mean, as in,
> >
> > if !is_integer($var) {
> > print("$var is not an integer");
> > }
> >
> > --- Philip Olson <[EMAIL PROTECTED]> wrote:
> > > hi friends,
> > >
> > > Can someone post here "the" most efficient
> method to
> > > validate a variable
> > > as numeric? I see a ton of hacks/ways in the
> manual
> > > user comments under
> > > is_int, is_integer and is_numeric and would like
> to
> > > see just one or two
> > > good solid ones. And please, no regular
> expressions
> > > :)
> > >
> > > Regards,
> > > Philip
> > >
> > >
> > >
> > >
> > > --
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