code: public function paginate($perPage = 15, $columns = ['*'], $pageName = 'page', $page = null)
      {
          /* Strip param page from URL */
          $url = preg_replace('/&?page=[^&]*/', '', Request::fullUrl());
          
          $paginate = $this->builder->paginate($perPage, $columns, $pageName, $page);
          $paginate->setPath($url);
          return $paginate;
      }
docs: Paginate the given query into a simple paginator.
  
  @param int $perPage
  @param array $columns
  @param string $pageName
  @param int|null $page
  @return \Illuminate\Contracts\Pagination\LengthAwarePaginator