Laravel 5: differentiate if new row inserted in DB

how can I differentiate if new row inserted or not using Laravel DB::insert()?, my query:

$return = DB::insert("
     INSERT IGNORE INTO groups
     (uid,name)
     VALUES
     ({$uid},'{$name}')
");

echo $return; // 1 in both cases

I found in both cases if new row inserted returns 1 and if not (because of duplication of primary key) returns 1 too.

via Chebli Mohamed