ErrorException array_column() 期望参数 1 是数组，给定对象

Question

   public function  goesWellWith(Request $request)
        {
            $seo_url = $request->seo_url;
            $product = $this->product->getByAny('seo_url',$request->seo_url)->first();
            $categories = $this->product->getProductCategories($product->id);
            $category_ids = [];
            $products = [];
    
            if(count($categories) > 0){
                $category_ids = array_column($categories, 'term_id');
            }
    
            if(count($category_ids) > 0){
    
                $get_fillter_product = $this->product->getProductByFilter([
                    'recommended' => "on"
                ],$category_ids);
    
                foreach($get_fillter_product as $single_product){
    
                        $categoryProductList = [
                            'title' => $single_product->title,
                            'sub_title' => $single_product->sub_title,
                            'first_image' => $single_product->first_image?$single_product->first_image->full_size_directory: null,
                            'second_image' => $single_product->second_image?$single_product->second_image->full_size_directory: null,
                            'seo_url' => $single_product->seo_url
                        ];
    
                        $category_ids [] = $categoryProductList;
                }
            }
   
            return response()->json(compact('category_ids'));
    
        }

//

-

列表项

当我在失眠中点击 url 来检查时，我得到了这个 ErrorException array_column() 期望参数 1 是数组，给定对象//

我在这行代码中遇到了错误

if(count($categories) > 0){
                $category_ids = array_column($categories, 'term_id');
            }

Answer 1

尝试从这里更改您的代码

$categories = $this->product->getProductCategories($product->id);

到

$categories = $this->product->getProductCategories($product->id)->toArray();