1
檢查數組print_r()視圖的波紋管。我想獲得只有「金額」的總價值。並且輸出不應該在數組中。它應該是一個簡單的整數值。所以結果應該是4 + 3 + 9 = 16關聯數組總數值計數
Array
(
[0] => Array
(
[id] => 15
[portfolio_id] => 1
[stock_id] => 1
[amount] => 4
[date] => 04/02/2017
[created_at] => 2017-04-02 09:04:30
[updated_at] => 2017-04-02 09:04:30
)
[1] => Array
(
[id] => 14
[portfolio_id] => 1
[stock_id] => 3
[amount] => 3
[date] => 04/02/2017
[created_at] => 2017-04-02 09:03:40
[updated_at] => 2017-04-02 09:03:40
)
[2] => Array
(
[id] => 13
[portfolio_id] => 1
[stock_id] => 4
[amount] => 9
[date] => 04/02/2017
[created_at] => 2017-04-02 09:03:36
[updated_at] => 2017-04-02 09:03:36
)
)
總是考慮添加現場演示鏈接:https://eval.in/766287它使你的代碼工作的其他明確。 – C2486