Re: is_numeric for php3

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 <philip@cornado.com> 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 <philip@cornado.com> 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 > > > > > > > > > > > > > > > -- > > > PHP General Mailing List (http://www.php.net/) > > > To unsubscribe, e-mail: > > > php-general-unsubscribe@lists.php.net > > > For additional commands, e-mail: > > > php-general-help@lists.php.net > > > To contact the list administrators, e-mail: > > > php-list-admin@lists.php.net > > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Make international calls for as low as $.04/minute > with Yahoo! Messenger > > http://phonecard.yahoo.com/ > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: > php-general-unsubscribe@lists.php.net > For additional commands, e-mail: > php-general-help@lists.php.net > To contact the list administrators, e-mail: > php-list-admin@lists.php.net > __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/