laraval 闭包的使用

$result = DB::table('ai_project')     ->where($data)     ->where('time', '>', $starttime)//立项时间     ->where('time', '<', $endtime); if ($request->all('condition')['condition']) {
      $result = $result->where(function ($query) use ($condition) {
          $query->where('project_name', '=', $condition)             ->orWhere('project_user', '=', $condition)             ->orWhere('project_code', '=', $condition)             ->orWhere('report_name', '=', $condition);     }); } $result = $result->paginate(15);