laravel/framework — pull request #1567 by Gwill (2013-06-07 05:54:18+00:00)
Title: add object_fetch helper function

add object_fetch helper function

```
$users = User::whereSomething($cond);
$user_ids = object_fetch($users, 'id');
// then you get a $user_ids array contain $users's id
```