How to find last key in orm object of Kohana

Question

I want to display the all users name with ,(comma) and dont want comma after last name.

Code:

$users = ORM::factory('users')->find_all();

foreach($users as $user){
   echo $user->name . ',';
}

This gives output

jimy, mark, larry,

But i dont want the last comma.

Answer 1

$users = ORM::factory('users')->find_all();

echo implode(',', $user->as_array(NULL, 'name'));