you can haz; couchbase-ext and libcouchbase and build php from git repo (defaults included) 

I used this cookbook originally, and have changed quite a few things and made quite a few additions that I'd like to give back to the community in hopes that they'll get used and maintained.... if nothing else, I'd love to hear some feedback. More than happy to add any changes you might want or remove any that you don't like..

enjoy