collection.php

<?php

$items = [];
foreach ($products as $value) {
    $items[] = [
        'product_id' => $value->id,
        'name' => $value->name,
    ];
}
return collect($items)->all();
==================================

return collect($products)
        ->map(function($product){ 
                return ['product_id' => $product->id,'name' => $product->name];
             })
       ->toArray();

=================================
  return Product::all()->pluck('id','name');