Go to Google advanced search and search for the following: all these words: php this exact wording or phrase: *RECURSION*. You should get the We’re sorry… page because of too many automated requests, which you are cleary not doing. How weird is that?
The asterisk (*) is a wildcard for any single word… Other than that, I don’t know, it didn’t work for me, but I’ve seen that error before when doing advanced searches.
Chris, it is interesting that php “*RECURSION*” now brings up results about tail recursion while RECURSION returns information about recursion in general.