laravel/framework — pull request #4138 by ipsq (2014-04-15 19:58:56+00:00)
Title: Fixed sockets not working in Laravel

It wasn't a hard fix to do. As explained here (http://php.net/manual/en/ref.pdo-mysql.connection.php), you can either use Host and Port or Unix Sockets. This is especially useful for Google App Engine users since they have to use sockets.