preg_replace with dash

Hi,

Just a quick question. I'm wondering if this code:

     function create_slug($string){  
    $slug=preg_replace('/[^A-Za-z0-9-]+/', '-', $string);  
    return $slug;  
  }  

Select allOpen in new window

will replace all instances of any character that is a letter or number with the dash. It's supposed to create user friendly post slugs from title string to use within URLs.

Thanks,
Victor