在集合上使用 sum avg min 或 max 進行統計計算
集合還為你提供了一種簡單的統計計算方法。
$books = [
['title' => 'The Pragmatic Programmer', 'price' => 20],
['title' => 'Continuous Delivery', 'price' => 30],
['title' => 'The Clean Coder', 'price' => 10],
]
$min = collect($books)->min('price'); // 10
$max = collect($books)->max('price'); // 30
$avg = collect($books)->avg('price'); // 20
$sum = collect($books)->sum('price'); // 60