Regex question

Is there any way, with a regex, to capture a pattern and use that match within the regex itself? Something along the lines of:


~(one|two|three)some other text here(this part here should match the captured pattern, rather than just specifying one|two|three again)~



Cheers muchly.

What you're looking for is a back reference:
http://www.php.net/manual/en/regexp.reference.back-references.php
~(one|two|three)some other text here\1~

Cheers. :)