cakePHP（v3.x）Collection Classでソートする

以下のような配列があるとします．

>>> $Users
=> [
     [
       "name" => "Tanaka",
       "age" => 16,
     ],
     [
       "name" => "Hamada",
       "age" => 18,
     ],
     [
       "name" => "Shimura",
       "age" => 12,
     ],
   ]

これをコレクションクラスを用いて年齢（降順）に並べる時は以下のように書くと良いです．

>>> collection($Users)->sortBy('age', SORT_DESC)->toArray();
=> [
     1 => [
       "name" => "Hamada",
       "age" => 18,
     ],
     0 => [
       "name" => "Tanaka",
       "age" => 16,
     ],
     2 => [
       "name" => "Shimura",
       "age" => 12,
     ],
   ]

SORT_DESCをSORT_ASCにすると昇順になります．