您可以使用Laravel Collection pluck方法，从每个数组项中只返回您想要的属性，然后将结果数组扁平化为flatten

$data = [
    [
        "location_id" => 1
    ],
    [
        "location_id" => 4
    ],
    [
        "location_id" => 6
    ],
    [
        "location_id" => 7
    ],
    [
        "location_id" => 8
    ]
];

$result = collect($data)->pluck('location_id')->flatten();

欢迎来到斯塔克弗鲁德。

**您可以使用laravel辅助器数组扁平化方法：**从此处阅读更多信息：https://laravel.com/docs/9.x/helpers#method-array-flatten

// Add the helper class call in the controller header
use Illuminate\Support\Arr;

// The actual array
$array = [
    0 => [
        "location_id" => 1
    ],
    1 =>  [
        "location_id" => 4
    ],
    2 =>  [
        "location_id" => 6
    ],
    3 =>  [
        "location_id" => 7
    ],
    4 =>  [
        "location_id" => 8
    ]
];

// Flatten the array function
$result = Arr::flatten($array);

结果：

['1','4','6','7','8']

虽然没有你想要的那么干净，但还是可以完成工作的。

$resultSet = collect($data)->map(function($item){
    return $item['location_id'];
})->toArray();

$resultString = "[";
foreach($resultSet as $item){
    $resultString .= "'{$item}'" . ",";
}
$resultString = rtrim($resultString, ","); // produces this: "['1','4','6','7','8']"

$resultString .= "]";

dd($resultString);

你可以使用laravel helper数组pluck方法从这里阅读更多关于它的信息：https://laravel.com/docs/9.x/helpers#method-array-pluck

$data   = \Arr::pluck($array, 'location_id'); 
$result = array_map('strrev', $data); 
// ["1","4","6","7","8"]