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Posted by Jim Michaels on 10/12/48 11:39
"Palle Hansen" <palle@na.invalid> wrote in message
news:43cf4b9b$0$84031$edfadb0f@dtext01.news.tele.dk...
> yawnmoth wrote:
>
>> if (eregi("^[a-z0-9| |\,\-\+\.]+$",$string))
>
>> Why does $string = 'te\st' yield a match? The ereg expression doesn't
>> have a \\ in it...
>
> To have this expression make sence to me, it should look like
>
> if (eregi("^[a-z0-9 ,+.-]+$",$string)){
>
> '-' should be the first og last character
>
> all the special characters looses their meaning in a character class.
if that's true, how yould you match a tab character \t or a whitespace \s?
Somehow I don't think they would do that.
I tried <?php print preg_match('/[\s]/'," \t "); ?> and it returned 1.
it works. \t and \s works in a character class. you can escape things. I
don't know who told you this.
> so you acually have 4 maching backslashes in the expression
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