Laravel 8 Arr::prepend() {#collection-method}

Arr::prepend 函数将一个值插入到数组的开始位置：

use Illuminate\Support\Arr;

$array = ['one', 'two', 'three', 'four'];

$array = Arr::prepend($array, 'zero');

// ['zero', 'one', 'two', 'three', 'four'] 

你也可以指定插入值的键：

use Illuminate\Support\Arr;

$array = ['price' => 100];

$array = Arr::prepend($array, 'Desk', 'name');

// ['name' => 'Desk', 'price' => 100]