تغيير مفاتيح العناصر بإستخدام keyBy

<?php

$products = collect([["code" => "book", "price" => 100], ["code" => "pen", "price" => 10]]);
echo $products->keyBy("code")->get("pen")["price"];

10

<?php

$items = collect([["code" => "A", "value" => 1], ["code" => "A", "value" => 2]]);
echo $items->keyBy("code")->get("A")["value"];

2