Posted by M. Sokolewicz on 04/04/05 16:08

Kim Madsen wrote:

>>-----Original Message-----
>>From: andreja@beogradnet.com [mailto:andreja@beogradnet.com]
>>Sent: Sunday, April 03, 2005 6:03 PM
>>To: php-general@lists.php.net
>>Subject: [PHP] Re: eregi problem
>>
>>i'm not familliar with regular expresions but i think that ^a-z - means
>>that variable must start witx a-z characters
>>you can chek it here:
>>
>>http://www.php.net/manual/en/reference.pcre.pattern.syntax.php
>
>
> True, but look careful at what HE did:
>
>
>>>if((eregi("[^a-zA-Z0-9]",$GP[sifre])
>
>
> 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 =/
>
> Also there´s no idea in having a-zA-Z in the pattern since eregi() is case insensitive.
>

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