decimal(); } catch (\InvalidArgumentException $e) { $withdraw_min = '0.00'; } $withdraw_usage = is_array($withdraw_usage ?? null) ? $withdraw_usage : ['remaining_count' => 0, 'remaining_amount' => '0.00']; $withdraw_fee_rate = (int) ($withdraw_settings['service_charge_rate'] ?? 5); $withdraw_channels = array_values(array_intersect(['alipay', 'wechat'], (array) ($withdraw_settings['payout_channels'] ?? ['alipay', 'wechat']))); if (!$withdraw_channels) { $withdraw_channels = ['alipay', 'wechat']; } ?>