PHP Regular Expressions

[Epsilon]

I thought PHP used standard POSIX regular expressions. Is this wrong? I used the following code to populate a drop-down list with the intention of excluding any element in the array $sites that contained a space:

while ($array_cell = each($sites))
{
   if (!ereg("\s",$array_cell[value]))
   {
      print ("<option value=\"".strtolower($array_cell[value])."\"$selected>".$array_cell[value]."</option>\n");
   }
}

I'm used to Perl where \s matches any whitespace character. But in PHP this code literally matched a lowercase s character -- not cool.

I replaced the regular expression with:

!ereg(" ",$array_cell[value])

and it properly matched spaces, but I'm concerned about the reliability of this method. There are other ways to make a space aside from ASCII code 32 (pressing the space bar). Could this cause a problem? Is there a REGEXP symbol in PHP that will match ANY whitespace as there is in Perl?

[sde]

i was going to mention something about escaping the backslahs before the 's', however i notice this forum does weird things with 2 backslashes. =/

[joe_bruin]

if you want perl-style regular expressions, see preg()

had you looked at the ereg documentation on php.net (http://us4.php.net/manual/en/function.ereg.php) you would have already known this.

[Epsilon]

Originally posted by joe_bruin
if you want perl-style regular expressions, see preg()

had you looked at the ereg documentation on php.net (http://us4.php.net/manual/en/function.ereg.php) you would have already known this.

Thank you joe_bruin. You could have just directed me to the page without being a pretentious **********, but you took the extra time to point out that I'm stupid for using this forum to ask for advice. You are correct, if I had seen that document previously I would have already known this. Then I wouldn't have had to waste your valuable time with such a trivial question.

With people of your impressive calibur trolling the threads it's a wonder these forums don't get more posts.

Thanks again, so much. Truly appreciated. Really.

[Epsilon]

Hmph.

[sde]

elipson, .. we welcome you here, ... and respect your opinion, ... but name calling doesn't do anything for our community.

your point was made even with my minor edit.. feel free to delete your post if you feel that you can not make your point without that word, but please don't re-edit my edit!

thanks