如何在 php 中計算多維數組中的值

Question

我有一個多維數組，我想用名稱 total 對所有值求和這里是一個例子

[1] => Array
    (
        [id] => 829
        [tok] => f3404ba92a40f7
        [user_id] => 1
        [total] => 10000
        [created_at] => 2020-12-03 00:18:09
    )

[2] => Array
    (
        [id] => 830
        [tok] => 2669483afacc47
        [user_id] => 1
        [total] => 2000
        [created_at] => 2020-12-03 00:18:12
    )

[3] => Array
    (
        [id] => 831
        [tok] => 9b72ba6ab4d8d0
        [user_id] => 1
        [total] => 5000
        [created_at] => 2020-12-03 00:18:14
    )

我想對數組中的所有總數求和

Answer 1

是這樣的嗎？ 只需將$data更改為您的變量名。

$sum = 0;

foreach ($data as $row) {
    $sum += $row['total'];
}

echo $sum; // 17000