Kim Madsen wrote:
-----Original Message-----
From: M. Sokolewicz [mailto:tularis@xxxxxxx]
Sent: Monday, April 04, 2005 3:08 PM
Putting the ^ _inside_ [] means NOT, so if any of the chars a-z0-9 is in
the string it´s NOT matched.
actually, that's not entirely correct. The regexp basically means that
if there is any character in the string which is NOT alphanumeric, then
it is matched. So basically it returns true if there is a
non-alphanumeric char, and false otherwise. However, AFAIK the regexp
should be delimited, since if it isn't it behaves "differently"... I
just can't remember how differently it is exactly =/
It _is_ correct. [^] means that whatever is in the [] must not be in the checked var to be true! Look in "mastering regular expressions" if You´re in doubt. There´s an example [^1-6] meaning if a digit between 1 and 6 is not in the value checked, it´s true:
which is exactly what I said...
$var1 = "123";
$var2 = "789";
if(ereg("[^1-6]", $var1))
print "$var1 is true";
else
print "$var1 is false";
returns false
if(ereg("[^1-6]", $var2))
print "$var2 is true";
else
print "$var2 is false";
returns true
It´s untested though :-)
I just wasn't too sure about absence of the regexp-delimiter...
--
Med venlig hilsen / best regards
ComX Networks A/S
Kim Madsen
Systemudvikler/systemdeveloper
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
