每次都是Laravel模型关系查询吗？

This is a model

class User {

   $table = 'users';

   public function item()
   {
        return $this->hasOne('Item');
   }


}

the I make a loop getting the item:

foreach($users as $user)
{

  echo $user->item->name;

}

are this user model querying the item each loop?

so if yes will this be the same?

class User {

   $table = 'users';

   public function item()
   {
        return Item::where('user_id', '=', $this->id)->first();
   }


}

in other words will be the first class method item the same as the second class method item? or is there a difference in performance?

if you are worried about performance, use User::with('item').

eloquent eager loading