如何在laravel中获取数组的某些元素？

我试图获取来自请求的数据，我使用PostMan发送请求。以下数组是 dd（$ items）; 的输出... ...我要从这些数组中获取的数据是 id 和 quantity

array:2 [
0 => array:12 [
"id" => 4
"name" => "omnis"
"image_name" => "https://source.unsplash.com/random"
"description" => "Officiis ea provident eius perspiciatis provident et eveniet illo. Tempore ullam ab molestiae unde. Fugit pariatur consequatur sunt veritatis. Laudantium quos veritatis quasi dolorum."
"price" => 9
"discount" => 0
"status" => 1
"category_id" => 24
"place_id" => 1
"created_at" => "2019-12-15 08:05:36"
"updated_at" => "2019-12-15 08:05:36"
"quantity" => 5
]
1 => array:12 [
"id" => 5
"name" => "molestiae"
"image_name" => "https://source.unsplash.com/random"
"description" => "Debitis dignissimos est veritatis veritatis sit. Ut ex non nam aliquid dolore vero earum. Ab aliquid et quibusdam enim."
"price" => 7
"discount" => 0
"status" => 1
"category_id" => 25
"place_id" => 1
"created_at" => "2019-12-15 08:05:36"
"updated_at" => "2019-12-15 08:05:36"
"quantity" => 3
]
]


我想做foreach循环来获得这个：

{
"id":4,"quantity":5
},{
"id":5,"quantity":3
}


它尝试过：

$item_array = [];
foreach ($items as $key=>$item)
{
$item_array[$key] = $item['id'];
$item_array[$key] = $item['quantity'];
}


将循环更改为

foreach ($items as $key=>$item)
{
$item_array[$key] = array(
'id' => $item['id'],'quantity' => $item['quantity']
);
}

,

您应该这样做：

$item_array = [];
foreach ($items as $key=>$item)
{
$obj = (object) ["id"=>$item['id'],"quantity"=>$item['quantity']];
$item_array[$key]=$obj;
}

,

  

我要从这些数组中获取的数据是id和数量

即：

$item_array = [];
foreach ($items as $item) {
$item_array[] = [
'id' => $item['id'],'quantity' => $item['quantity']
];
}


或者如果您想使用真正的Laravel方式：

use Illuminate\Support\Arr;
$result = array_map(
function($x) {
return Arr::only($x,['id','quantity']);
},$source
);


或collect（$ source）-> map（...）利用集合而不是数组。

use Illuminate\Support\Arr;
collect($items)->map(function($item) {
return Arr::only($item,'quantity']);
})->all();