отправить сообщение на канал телеграммы ботом

я делаю бот-телеграмму с telegram botfather, и я делаю своего бота администратором на своем общедоступном канале телеграмм, теперь я хочу отправить сообщение по каналу ботом, вот мой код для этой работы:

Код send.php:

<?php
require('telegram-bot-api.php');

$token = '10**************************************jM';
$bot = new telegram_bot($token);
$to = '@myChannel';
$rs = $bot->send_message($to , 'test' , null, null);
print_r($rs);
?>

и код telegram-bot-api.php:

<?php
class ReplyKeyboardMarkup{
public $keyboard;
public $resize_keyboard;
public $one_time_keyboard;
public $selective;

function __construct($resize_keyboard=FALSE, $one_time_keyboard = FALSE, $selective=FALSE){
$this->keyboard=array();
$this->keyboard[0]=array();
$this->resize_keyboard=$resize_keyboard;
$this->one_time_keyboard=$one_time_keyboard;
$this->selective=$selective;
}
public function add_option($option){
$this->keyboard = $option;
}
}
class ReplyKeyboardHide{
public $hide_keyboard;
public $selective;

function __construct($hide_keyboard=TRUE, $selective = FALSE){
$this->hide_keyboard=$hide_keyboard;
$this->selective=$selective;
}
}
class ForceReply{
public $force_reply;
public $selective;

function __construct($force_reply=TRUE, $selective = FALSE){
$this->force_reply=$force_reply;
$this->selective=$selective;
}
}

class telegram_bot{
private $token;

private function open_url($url, $method="GET", $data=null){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
if($method==="POST"){
if(isset($data)){
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

}
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
return curl_exec($ch);
}

private function control_api($action, $data=NULL){
$token = $this->token;
$response = json_decode($this->open_url("https://api.telegram.org/bot$token$action", "POST", $data));
return $response;
}

function __construct($token){
$this->token=$token;
}

public function status(){
$response = $this->control_api("/getme");
return($response);
}

public function get_updates(){
$response = $this->control_api("/getUpdates");
return($response);
}

public function send_action($to, $action){
$data = array();
$data["chat_id"]=$to;
$data["action"]=$action;
$response = $this->control_api("/sendChatAction", $data);

return $response;
}

public function send_message($to, $msg, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;
$data["text"]=$msg;
$data["disable_web_page_preview"]="true";
if(isset($id_msg))
$data["reply_to_message_id"]=$id_msg;
if(isset($reply))
$data["reply_markup"]=$reply;
$response = $this->control_api("/sendMessage", $data);

return $response;
}

public function send_location($to, $lat, $lon, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;
$data["latitude"]=$lat;
$data["longitude"]=$lon;
if(isset($id_msg))
$data["reply_to_message_id"]=$id_msg;
if(isset($reply))
$data["reply_markup"]=$reply;
$response = $this->control_api("/sendLocation", $data);

return $response;
}

public function send_sticker($to, $sticker, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;
if(file_exists($sticker))$sticker="@".$sticker;
$data["sticker"]=$sticker;
if(isset($id_msg))
$data["reply_to_message_id"]=$id_msg;
if(isset($reply))
$data["reply_markup"]=$reply;
$response = $this->control_api("/sendSticker", $data);

return $response;
}

public function send_video($to, $video, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;
if(file_exists($video))$video="@".$video;
$data["video"]=$video;
if(isset($id_msg))
$data["reply_to_message_id"]=$id_msg;
if(isset($reply))
$data["reply_markup"]=$reply;
$response = $this->control_api("/sendVideo", $data);
return $response;
}

public function send_photo($to, $photo, $caption, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;

if(file_exists($photo))$photo="@".$photo;
$data["photo"]=$photo;
if(isset($caption)){
$data["caption"]=$caption;
}
if(isset($id_msg)){
$data["reply_to_message_id"]=$id_msg;
}
if(isset($reply))
$data["reply_markup"]=$reply;

$response = $this->control_api("/sendPhoto", $data);

return $response;
}

public function send_audio($to, $audio, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;

if(file_exists($audio))$audio="@".$audio;
$data["audio"]=$audio;
if(isset($id_msg)){
$data["reply_to_message_id"]=$id_msg;
}
if(isset($reply))
$data["reply_markup"]=$reply;

$response = $this->control_api("/sendAudio", $data);

return $response;
}

public function send_document($to, $document, $id_msg=null, $reply=null){
$data = array();
$data["chat_id"]=$to;

if(file_exists($audio))$document="@".$audio;
$data["document"]=$document;
if(isset($id_msg)){
$data["reply_to_message_id"]=$id_msg;
}
if(isset($reply))
$data["reply_markup"]=$reply;

$response = $this->control_api("/sendDocument", $data);

return $response;
}

public function forward_message($to, $from, $msg_id){
$data = array();
$data["chat_id"]=$to;
$data["from_chat_id"]=$from;
$data["message_id"]=$msg_id;
$response = $this->control_api("/forwardMessage", $data);

return $response;
}

public function set_webhook($url=null){
$data = array();
$data["url"]=$url;
$response = $this->control_api("/setWebhook", $data);

return $response;
}

public function get_user_profile_photos($id_user, $offset=null, $limit=null){
$data = array();
$data["user_id"]=$id_user;
if(isset($offset)){
$data["offset"]=$offset;
}
if(isset($limit)){
$data["limit"]=$limit;
}

$response = $this->control_api("/getUserProfilePhotos", $data);

return $response;
}

public function read_post_message(){
return json_decode(file_get_contents('php://input'));
}

}
?>

но при запуске send.php не отправлять сообщение на канал, но когда я заменяю chat_id на приватный chat_id или группу chat_id, этот код делается очень круто и отправляет сообщение группе или моему контакту

Извините за мой английский язык, извините 🙂