The answer is a PHP function name or algorithm to calculate the distance between two words. If you take the distance of both pages you get 8, which is the numb

The answer is a PHP function name or algorithm to calculate the distance between two words. If you take the distance of both pages you get 8, which is the number of words in the "This is not the hint. Seriously stop checking." I guess the hint is way too difficult: "word distance algorithm" would have been easier.