error in PHP Regular Expressions manual

I have been reading up on understanding regular expressions lately and have come across this link: http://www.php.net/manual/en/regexp.reference.php if you scroll down the subpatterns section, I come across this part: For example, if the string "the red king" is matched against the pattern the ((red|white) (king|queen)) the captured substrings are "red king", "red", and "king", and are numbered 1, 2, and 3. But when I try this by using the following code; " . print_r($matches[0], 1) . "\n"; ?> Output: Array ( [0] => red king ) I only get "red king" as a result. And this makes sense, as the pattern is looking for either "red" or "white" followed by a blank space (personally, I would prefer to see the '\s' but I digress), then followed by either "king" or "queen". As such, there is no individual match for patterns like "red" or "king" to be made using the pattern: ((red|white) (king|queen)) Cheers, Norm _________________________________________________________________