laravel/framework — pull request #1783 by sajanp (2013-07-01 02:04:38+00:00)
Title: Added Request method to return remote IP address.

Felt like this should exist. `$_SERVER['REMOTE_ADDR']` is not hard to type, but we needed a hipster way of dong it. That, and I hate underscores, and that has TWO of them.