Meh. Neither are particularly inspiring. Yeah, thejester's is pedantically long and uses way too many variables, while lulzsec seems to have an aversion to variables, running ip2long($argv[1]) up to three times per loop.

Also, the "lulzier" version does not separately handle the case where a webserver is found but does not return a response containing the needle. It's true that thejester's script is not particularly efficient in wasting a socket connect to do this separate check, but for a one-off task, who cares.