- pluck()
pluck 方法获取集合中给定键对应的所有值:
$collection = collect([
['product_id' => 'prod-100', 'name' => 'Desk'],
['product_id' => 'prod-200', 'name' => 'Chair'],
]);
$plucked = $collection->pluck('name');
$plucked->all();
// ['Desk', 'Chair']
第二个参数为返回数组的键
$plucked = $collection->pluck('name', 'product_id');
$plucked->all();
// ['prod-100' => 'Desk', 'prod-200' => 'Chair']
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