$v) { $settleAmount = $v['settleAmount'] ?? 0; $orderAmount = $v['orderAmount'] ?? 0; $sum = bcadd($settleAmount, $orderAmount, 2); $amount = $v['amount'] ?? 0; $becomeBalance = bcsub($amount, $sum, 2); $becomeBalance = floatval($becomeBalance); $data['list'][$k]['becomeBalance'] = $becomeBalance; } } return $data; } }