php除开用,分隔数组之外，假如提交的是回车换行的参数，把他们转为数组

$param = $request->param('', '', 'trim,strip_tags,htmlspecialchars');
        // 循环遍历数组中每个IP地址，并将其分割成独立的IP地址
        foreach ($param['panel']['business_ip'] as $key => $ipList) {
            // 检查IP地址是否包含回车换行符
            if (strpos($ipList, "\n") !== false) {
                // 将回车换行分隔的IP地址转换为数组形式
                $ips = explode("\n", $ipList);
                $cleanedIPs = [];
                foreach ($ips as $ip) {
                    $cleanedIPs[] = trim($ip);
                }
                $param['panel']['business_ip'][$key] = $cleanedIPs;
            } else {
                // 如果IP地址不包含回车换行符，则按照逗号进行分割
                $ips = explode(',', $ipList);
                $param['panel']['business_ip'][$key] = $ips;
            }
        }
        // 在转换为JSON之前，移除数组的外层方括号
        $param['panel']['business_ip'] = current($param['panel']['business_ip']);
        dump($param['panel']['business_ip']);die;