Php 将数组中的相同值分组并添加

我在数组$orders中有以下内容

Array
(
    [0] => Array
        (
            [ORDER_NUMBER] => 0001
            [NAME]         => Customer 1
            [LINE_TOTAL]   => 100.00
        )
    [1] => Array
        (
            [ORDER_NUMBER] => 0001
            [NAME]         => Customer 1
            [LINE_TOTAL]   => 300.00
        )
    [2] => Array
        (
            [ORDER_NUMBER] => 0002
            [NAME]         => Customer 2
            [LINE_TOTAL]   => 550.00
        )
    [3] => Array
        (
            [ORDER_NUMBER] => 0003
            [NAME]         => Customer 3
            [LINE_TOTAL]   => 300.00
        )
 )

我想按订单号对它们进行分组，并将行总数加在一起，这样最终的数组将如下所示。语言是PHP

Array
(
    [0] => Array
        (
            [ORDER_NUMBER] => 0001
            [NAME]         => Customer 1
            [TOTAL]        => 400.00 // 300 + 100 = 400
        )
    [1] => Array
        (
            [ORDER_NUMBER] => 0002
            [NAME]         => Customer 2
            [TOTAL]        => 550.00
        )
    [2] => Array
        (
            [ORDER_NUMBER] => 0003
            [NAME]         => Customer 3
            [TOTAL]        => 300.00
        )
 )

如果有人能帮上忙那就太好了，我尝试了一些不同的方法，但是我没有得到我想要的结果

---

干杯，

这将循环浏览订单，并根据您的订单号将其置于关联索引下。如果已经存在一个，它会将新行_TOTAL添加到其中

$orders;

$newOrders;

foreach ($orders as $order) {
    $id = $order['ORDER_NUMBER'];
    
    if(isset($newOrders[$id])){
        $newOrders[$id]['LINE_TOTAL'] += $order['LINE_TOTAL'];
    } else $newOrders[$id] = $order;
}