检查数组是否包含与正在迭代的另一个数组相同的键和值。 PHP

Question

首先，我使用的框架是Laravel 5.3

我想要完成的是找到一种方法来最小化我的应用程序中的查询。我正在一个餐厅网络控制面板上工作，在我应该编辑菜肴列表的视图中，形成分配给每日特别菜单的各个类别。视图预览如下所示：

我有两个查询，在对它们的结果进行一些处理后，分别生成一个不同的数组。

第一个数组名为：$selectable_categories_and_dishes returns 数据库中所有类别和菜肴的数组（这包括已经选择的类别和相应的菜肴）。

数组的对象和结构：

{
  "id_category":4,
  "category_name":"Contorno ",
  "dishes":[
            {
             "id":15,
             "price":"10",
             "name":"Patate al Forno"
            },
            {
             "id":16,
             "price":
             "8","name":"Verdure alla Griglia"
            },
            {
             "id":17,
             "price":"8",
             "name":"Insalata Mista"
            }
          ],
}

第二个数组名为：$selected_categories_and_dishes returns 最初创建每日特色菜单时选择的所有类别和菜肴的数组。数组的对象和结构：

{
  "id_category":4,
  "category_name":"Contorno ",
  "dishes":[
            {
             "id":15,
             "price":"10",
             "name":"Patate al Forno",
             "id_pcm":"4"
            },
            {
             "id":16,
             "price":"8",
             "name":"Verdure alla Griglia",
             "id_pcm":"4"
            },
            {
             "id":17,
             "price":"8",
             "name":"Insalata Mista",
             "id_pcm":"4"
            }
          ],
}

我想不通的是一种将这些数组合并在一起的方法，当我循环合并的数组时，所有选定的菜肴都会被选中。

我该怎么做？

编辑:

我生成这个数组id的方式如下：

 $menu_categories = DB::select('SELECT id , name FROM `packages_menu_categories` WHERE visible = "yes" AND `delete` = "no"');
        $selectable_categories_and_dishes = array();
        foreach ($menu_categories as $menu_category)
        {
            $dishes =  DB::select('SELECT d.id , d.price , d.name FROM `package_menu_categories_dishes` p LEFT JOIN `dishes` d ON p.id_dish = d.id WHERE p.visible = "yes" AND p.delete = "no" AND p.id_package_menu_category ='.$menu_category->id);
            $object=
                [
                    'id_category' => $menu_category->id,
                    'category_name' =>$menu_category->name,
                    'dishes' => $dishes
                ];

            array_push($selectable_categories_and_dishes,$object);
        }

        $selected_categories = DB::select('SELECT c.id as id_category , c.name as category_name FROM sub_packages_dishes s LEFT JOIN packages_menu_categories c ON s.id_package_menu_category = c.id WHERE s.id_sub_package = '.$id.' GROUP BY s.id_package_menu_category');
        $dishes_and_categories  = array();
        foreach ($selected_categories as $selected_category)
        {
            $dishes =  DB::select('SELECT s.id AS id_pmcd , d.id , d.name FROM `sub_packages_dishes` s LEFT JOIN `dishes` d ON s.id_dish = d.id WHERE s.id_sub_package ='.$id.' AND s.id_package_menu_category ='.$selected_category->id_category);
            $object=
                [
                    'id_category' => $selected_category->id_category,
                    'category_name' =>$selected_category->category_name,
                    'dishes' => $dishes
                ];
            array_push($dishes_and_categories,$object);
        }

Answer 1

假设您可以控制数组的结构，我的建议是让菜肴成为一个关联数组，并将键作为菜肴 ID。然后当你循环检查你所在的那个存在于 selected

本质上这将是一个结构：

{
"id_category":4,
"category_name":"Contorno ",
"dishes":{
    15 => {
        "price":"10",
        "name":"Patate al Forno",
        "id_pcm":"4"
    },
    16 => {
        "price":"8",
        "name":"Verdure alla Griglia",
        "id_pcm":"4"
    }
    ...
}

然后当你循环你的数组时就很简单了。这可能不是 100%，但明白了这一点。

foreach($selectable_categories_and_dishes as $key => $values){
    if(isset($selected_categories['dishes'][$key])){
        //This is selected so check the box. 
    }
}

检查数组是否包含与正在迭代的另一个数组相同的键和值。 PHP

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