Re: Similar functions?

I'm not sure if this is what you're looking for but if it is it will be much easier the regex's http://ca.php.net/manual/en/ref.ctype.php The functions here look to see if variables are alpha, numeric, or alpha/numeric and some other stuff. On Thu, 2003-11-20 at 01:24, Jake McHenry wrote: > Can anyone tell me if there are similar functions in php as javascript > isNaN, or do I just have to do a > > if (preg_match('/([A-Z][a-z][`~!@#$%^&*()_=+|\?/><,.;:{}-])/', > $_POST['Personal_Hotel_CC_Number']) == 0){} > > > I know the above doesn't work, would there be an easier way for me to > find if any of the chars are not numbers? > > I could do: > > if (preg_match_all("/([0-9])/", $var, $match) == 16){} > > But AMEX cards are only 15 digits... > > It's for credit card verification. > > > Thanks, > > Jake McHenry > Nittany Travel MIS Coordinator > http://www.nittanytravel.com > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > -- "I have a photographic memory. I just forgot the film" --Unknown ============================= Ryan Thompson rthomp@sympatico.ca http://osgw.sourceforge.net