Sort multiple different entities by common attribute - symfony

Question

Using Symfony 5.4.17. New to Symfony.
I have three similar Entity types and want to return an array called Food that I can loop over in a twig template like so:
{% for food in foodArr %}
<div class = 'border p-3 mb-3'>
View
<p>Food Name: {{food.Description}}</p>
<p>Food Id: {{food.id}}</p>
<p>Date: {{food.Date|date('m-d-Y')}}</p>
Delete?
</div>
{% endfor %}
Here are is the code in the controller. Note that I get each of the food type objects that are related to the current user, and just for now put them in an array.
$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);
How can I store these three entity types sorted by Date into a renderable format? The idea is to have one loopable array that is already sorted by Date that contains any of the three types.

Answer 1

With the help of #Cerad, I made an answer:
Sorting function in the Controller:
function date_sort($objA,$objB){
if($objA->getDate() == $objB->getDate()) return 0;
return ($objA->getDate() < $objB->getDate()) ? -1:1;
}
Controller view:
$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']
);
$foodArr = array_merge($menustatFoods,$usdaBrandedFoods,$usdaNonBrandedFoods);
// add all foods to array
usort($foodArr,array($this,"date_sort"));