使用Symfony 5.4.17。Symfony的新功能。
我有三个相似的Entity类型，我想返回一个名为Food的数组，我可以在一个twig模板中循环遍历它，如下所示：

{% for food in foodArr %}
    <div class = 'border p-3 mb-3'>
        <a href="/food/show/{{get_class(food)}}/{{food.id}}">View</a>
        <p>Food Name: {{food.Description}}</p>
        <p>Food Id: {{food.id}}</p>
        <p>Date: {{food.Date|date('m-d-Y')}}</p>
        <a href="/food/delete/{{get_class(food)}}/{{food.id}}">Delete?</a>
    </div>
    {% endfor %}

下面是控制器中的代码。注意，我获取了与当前用户相关的每个食物类型对象，并暂时将它们放入数组中。

$menustatFoodRepo = $this->em->getRepository(MenustatFood::class);
$usdaBrandedFoodRepo = $this->em->getRepository(UsdaBrandedFood::class);
$usdaNonBrandedFoodRepo = $this->em->getRepository(UsdaNonBrandedFood::class);

$menustatFoods= $menustatFoodRepo->findBy(
    ['User' => $this->getUser()],
    ['Date' => 'ASC']
);
$usdaBrandedFoods = $usdaBrandedFoodRepo -> findBy(
    ['User' => $this->getUser()],
    ['Date' => 'ASC']
);
$usdaNonBrandedFoods = $usdaNonBrandedFoodRepo -> findBy(
    ['User' => $this->getUser()],
    ['Date' => 'ASC']
);

$foodArr = array();
// add all foods to array
array_push($foodArr,$menustatFoods,$usdaBrandedFoods,$usdaNonBrandedFoods);

如何将这三种按Date排序的实体类型存储为可呈现的格式？我们的想法是创建一个已按Date排序的可循环数组，其中包含这三种类型中的任何一种。