มีปัญหาหงุดหงิดกับ Server ที่ตั้งอยู่ใน router ที่เป็น dynamic IP ใช่ไหม มีโปรแกรมมาช่วยแก้ปัญหา

<?php
// filename DynamicIp
defined('BASEPATH') OR exit('No direct script access allowed');
define('cf_email','??????'); // email reference เอา ที่ลงทะเบียนกับ ผู้ให้บริการ cloudflare
define('cf_key','?????'); // cloudflare: secure-key เอามาจากผู้ให้บริการ cloudflare

function SetGG_Curl($user,$psw,$host,$ip){
	$data_post = ['hostname'=>$host,'myip'=>$ip];
	$fields_string = http_build_query($data_post);
	$ch = curl_init();
	$url = 'https://'.$user.':'.$psw.'@domains.google.com/nic/update';
	//echo $url; exit;
	curl_setopt($ch, CURLOPT_URL,            $url);
	curl_setopt($ch, CURLOPT_HEADER,         0);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 ");
	curl_setopt($ch, CURLOPT_POST,       1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
	$rsp = curl_exec($ch); curl_close($ch);
	return (object)['url'=>$url, 'fld'=>$fields_string, 'rs'=>$rsp];
}

function CF_GetZone($zone){
	$ch = curl_init();
	$url='https://api.cloudflare.com/client/v4/zones?name='.$zone.'&status=active';
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_HTTPHEADER, [
		'X-Auth-Email: ' . cf_email,
		'X-Auth-Key: '. cf_key,
		"Content-Type: application/json"
		]);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_POST, 0);
	$rsp = json_decode(curl_exec($ch)); curl_close($ch);
	return $rsp->result[0]->id;
}

function CF_DnsID($zoneid, $dns,$ty='AAAA'){ //cloudflare
	$ch = curl_init();
	$url="https://api.cloudflare.com/client/v4/zones/$zoneid/dns_records?type=$ty&name=$dns";
	curl_setopt($ch, CURLOPT_URL,            $url);
	curl_setopt($ch, CURLOPT_HEADER,  0);
	curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-Auth-Email: '.cf_email,'X-Auth-Key: '.cf_key,'Content-Type: application/json']);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_POST, 0);
	$rsp = curl_exec($ch); curl_close($ch);
	$js=json_decode($rsp>''? $rsp : '[]');
	//print_r($js); die();
	return $js->result[0]->id??'';
}

function CF_DnsPut($dns, $zoneid, $dns_id, $ip, $prox, $ty='AAAA'){ //cloudflare
	$ar=(object)['type'=>$ty, 'name'=>$dns,'content'=>$ip,'ttl'=>1,'proxied'=>$prox? true : false];
	$fields_string = http_build_query($ar);
	$url="https://api.cloudflare.com/client/v4/zones/$zoneid/dns_records/$dns_id";
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL, $url);
	//curl_setopt($ch, CURLOPT_HEADER,  0);
	curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-Auth-Email: ' . cf_email, 'X-Auth-Key: '. cf_key, 'Content-Type: application/json']);
	curl_setopt($ch, CURLOPT_POST,       1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
	$rsp = curl_exec($ch); curl_close($ch);
	return [$url, $fields_string, json_decode($rsp)];
}

class DynamicIp extends CI_Controller {
	public function __construct(){
		parent::__construct();
		define('IPv4',file_get_contents('https://checkip.amazonaws.com'));
		define('IPv6',file_get_contents('https://ifconfig.me'));
	}
	public function IP4(){ echo IPv4; }
	public function IP6(){ echo IPv6; }
	public function Index(){	
		$mip=['A'=>IPv4, 'AAAA'=>IPv6];		
		//************************************	Google Dns
		$rs=$this->db->get_where('domains',['uid'=>1])->result();
		foreach($rs as $ro){
			$gip=$mip[$ro->ty]??IPv4;
			if($ro->ip != $gip){
				$ro->old_ip=$ro->ip??'-'; $ro->ip=$gip;
				SetGG_Curl($ro->uname, $ro->passwd,($ro->sub>''? $ro->sub.'.':'').$ro->domain, $gip);
				$this->db->update('domains', ['old_ip'=>$ro->old_ip, 'ip'=>$mip[$ro->ty], 'up2date'=>cur_date_time],['id'=>$ro->id]);
			}
		}
		//************************************		
		$rs=$this->db->order_by('domain')->get_where('domains',['uid'=>2])->result();
		$old_domain='';
		foreach($rs as $ro){
			$gip=$mip[$ro->ty]??IPv4;
			if($ro->ip != $gip){
				if($old_domain!=$ro->domain){
					$zoneid = CF_GetZone($ro->domain);
					$old_domain=$ro->domain;
				}			 
				$dns=($ro->sub ? $ro->sub.'.' : '').$ro->domain;
				$dns_id=CF_DnsID($zoneid, $dns, $ro->ty);				 
				CF_DnsPut($dns, $zoneid, $dns_id, $gip, $ro->prox, $ro->ty);
				$this->db->update('domains',['old_ip'=>$ro->ip??'', 'ip'=>$gip, 'up2date'=>cur_date_time],['id'=>$ro->id]);
			}
		}		
		$this->parser->parse('sh', ['loop'=>$ar, 'zoneid'=>$zone, 'em'=>cf_email, 'ky'=>cf_key, 'gg'=>$gg]);
	}
}

-- ตัวอย่าง ข้อมูล table "domains"
create table domains (
  Id	int primary key identity(1, 1),
	uid	int,
	domain	nvarchar(100),
	sub	nvarchar(100),
	uname	varchar(32),
	paswd	varchar(64),
	ip	varchar(64) NULL,
	old_ip	varchar(64) NULL,
	up2date	datetime NULL,
	prox	tinyint NULL,
	ty	varchar(4)
);
insert into domains (uid,domain,sub,uname,paswd,ip,old_ip,up2date,prox,ty) 
	values (1,"????.com","","????","????","","",getdate(),0,"A");
insert into domains (uid,domain,sub,uname,paswd,ip,old_ip,up2date,prox,ty)
	values (2,"????.com","","email@????.com","??????","","","",1,"AAAA");