public function each(callable $cb)
    {
        foreach ($this->storage as $key => $value) {
            call_user_func_array($cb, [$value, $key]);
        }
    }
public function each(callable $cb)
    {
        foreach ($this->storage as $key => $value) {
            call_user_func_array($cb, [$value, $key]);
        }
    }
public function each ( callable $ cb ) { foreach ( $ this -> storage as $ key => $ value ) { call_user_func_array ( $ cb , [ $ value , $ key ] ) ; } }
Browse all the values of the collection

@param callable $cb
Browse all the values of the collection