[thelist] PHP: is_numeric... that's the question...

Max Schwanekamp lists at neptunewebworks.com
Thu Jan 18 05:05:54 CST 2007

Tris wrote:
> I went here:
> http://www.phpbuilder.com/columns/dario19990616.php3
> but could find no reference to the ' ! ' you have at the start and end
> of your $pattern string...
> can you let me know what they do..?

The ! is just the regex pattern delimiter.  AFAIK it can be any regular 
character.  Most PHP coders use / or ! or #.  See the first paragraph on 
the PCRE page:

Max Schwanekamp

More information about the thelist mailing list