Help use REGEX - preg_match to pull string out of html doc

[casbboy]

I need to pull the keywords listed in the keyword header tag out of a supplied html address...

how would I setup preg_match to do this?

Thanks
Ryan

[drew010]

see if this works, its a little tricky cause you never know if the site will do it like
name="keywords" content='stuff' />
or
name=keywords content=stuff>
etc. so i think that should catch it with " ' and nothing there, as well as the xml standard / at the end of the tag.

$pattern = "<meta name=.?KEYWORDS.? content=('|\")?(.*?)('|\"|/)?>/i";

$m = preg_match($pattern, $subject, $matches);

if ($m) {
  echo $matches[2];
}