laravel 错误 "strtolower() expects parameter 1 to be string"？

Question

我正在将 json 传递给 laravel 路由，如下所示，我正在运行此查询 sql 视图。

{"columns":["fname","lname","mobile"], "offset":"1", "limit":"25", "order":[["fname","asc"],["lname","asc"]], "filter":[["gender","=","M"]]}

这是放置在控制器中的函数，它将在路由上调用

public function fetch_contacts(Request $request){
    if($request->header('content-type') == 'application/json' && !empty($request->header('Device')) && !empty($request->header('UID'))){
          $query = DB::connection('mysql_freesubs')->table("contact_view")
              ->select($request->columns);

              if(!empty($request->filter))
                $query = $query->where($request->filter);

              if(!empty($request->offset))
                $query = $query->offset($request->offset);

              if(!empty($request->limit))
                $query = $query->limit($request->limit);

              if(!empty($request->order))
                $query = $query->orderBy($request->order);

              $contacts = $query->get();
              return $contacts;
}

我哪里错了？

Answer 1

您正在将多维数组传递给 orderBy，试试这个：

$query = $query->orderBy($request->order[0][0], $request->order[0][1]);
$query = $query->orderBy($request->order[1][0], $request->order[1][1]);

laravel 错误 "strtolower() expects parameter 1 to be string"？

laravel error "strtolower() expects parameter 1 to be string"?

laravel

laravel-5.3