In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Joshua E Minnie) wrote:
> Does anybody know of a good way to make sure that a string contains ONLY
> certain characters. I tried using
> ereg("[~`!@#$%^&*(){}-+=|\\/.,<>'\":;\[\]]", $string); but I get parse
> errors. Besides that I only want the characters A-Za-z0-9_ in $string. Is
> there is simpler way to ensure this rather than checking to see if any of
> the characters I don't want are in there?
if(preg_match("/\W/",$string))
{
echo "Bad characters.";
}
<http://php.net/preg-match>
<http://www.php.net/pcre.pattern.syntax>
--
CC
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
