Telegram api bot forward forwardMessage from a channel to another.

forward.php

<?php


$token = YOUR_BOT_TOKEN;
//your bot must be admin of both channel.

$original_from_chat_id = ORIGINAL_CHAT_ID; // like this -1001122688109
$target_chat_id = TARGET_CHAT_ID; // like this -1001131688104



$forward_from_message_id_start = 2356;
$forward_from_message_id_finish = 2501;
 $startTime = time();


for ($x = $forward_from_message_id_start; $x <= $forward_from_message_id_finish; $x++) {
   

  
if(time() - $startTime > 3){
  $startTime=time();
  sleep(1);
}
 
   $res = telegramHTTPRequest($token, 'forwardMessage', ['chat_id' =>  $target_chat_id ,'from_chat_id' => $original_from_chat_id ,'disable_notification' => true , 'message_id' => $x  ]);


  
}




function allFileInDir($path)
    {
        $files = new \RecursiveIteratorIterator(
            new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS),
            \RecursiveIteratorIterator::CHILD_FIRST
        );
        $arr = [];
        foreach ($files as $fileinfo) {
            if (!$fileinfo->isDir()) {
                $arr[] = $fileinfo->getRealPath();
            }

        }
        asort($arr);
        $array_with_new_keys = array_values($arr);
        return $array_with_new_keys;
    }

function makeHTTPRequest($url, $method, $datas = [], $certAddress = false)
    {
        //$proxy_userpwd must be like this ===> "username:pass"
        //'CURLOPT_CAINFO' => "/etc/certs/cabundle.pem"  is CURLOPT_CAINFO - path to Certificate Authority (CA) bundle
        // example : 'CURLOPT_CAINFO' => "/etc/certs/cabundle.pem" 

        $url = rtrim($url, '/');
        $url = $url . "/" . trim($method, '/');
        $ch = curl_init();
        if (isset($datas['proxy_url']) && (isset($datas['proxy_port']))) {
            curl_setopt($ch, CURLOPT_PROXY, $datas['proxy_url']); //your proxy url
            curl_setopt($ch, CURLOPT_PROXYPORT, $datas['proxy_port']); // your proxy port number
            unset($datas['proxy_url']);
            unset($datas['proxy_port']);
            if (isset($datas['proxy_userpwd'])) {
                curl_setopt($ch, CURLOPT_PROXYUSERPWD, $datas['proxy_userpwd']); //username:pass
                unset($datas['proxy_userpwd']);
            }
        }


        curl_setopt($ch, CURLOPT_URL, $url);
        if (isset($datas['CURLOPT_CAINFO'])) {
            curl_setopt($ch, CURLOPT_CAINFO, $datas['CURLOPT_CAINFO']);
        }
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

//         curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($datas));
        curl_setopt($ch, CURLOPT_POSTFIELDS, $datas);
        $res = curl_exec($ch);

        if (curl_error($ch)) {
//             var_dump(curl_error($ch));
            return curl_error($ch);
        } else {

            return json_decode($res);
        }
    }

     function telegramHTTPRequest($token, $method, $datas = null)
    {
        $url = "https://api.telegram.org/bot" . $token;
        return isset($datas) ? makeHTTPRequest($url, $method, $datas) : makeHTTPRequest($url, $method);

    }

    
//    static function methodParamArgArr
function removeNullValue(array $array)
    {
        $temp = [];
        foreach ($array as $key => $value) {
            if (!is_null($value)) {
                $temp[$key] = $value;
            }
        }
        return $temp;
    }

function upload($type, $path = null, $fields = [], $file_id = null,$token=null)
    {

        $allFields = [
            'chat_id' =>null,
            'photo' => null,
            'caption' => null,
            'parse_mode' => null,
            'disable_notification' => null,
            'reply_to_message_id' => null,
            'reply_markup' => null,
            'audio' => null,
            'duration' => null,
            'performer' => null,
            'title' => null,
            'document' => null,
            'video' => null,
            'width' => null,
            'height' => null,
            'supports_streaming' => null,
            'voice' => null,
        ];

        if(! empty($fields)){
            foreach ($fields as $key => $value) {
                $allFields[$key] = $fields[$key];
            }
        }
        if (is_null($file_id)) {
            //Upload to Telegram
            if (function_exists('curl_file_create')) { // php 5.6+
                $cFile = curl_file_create($path);
            } else {
                $cFile = '@' . realpath($path);
            }
            $allFields[$type] = $cFile;
        } else {
            $allFields[$type] = $file_id;
        }

//        if (isset($message->caption)) {
//            $allFields['caption'] = $message->caption;
//        }

//        if (! is_null($ReplyMarkp)) {
//            $allFields['reply_markup'] = json_encode($ReplyMarkp);
//        }

        if ($type != 'video_note') {
            $method = 'send' . ucfirst($type);
        } else {
            $method = 'sendVideoNote';
        }
//        \Ybagheri\EasyHelper::telegramHTTPRequest($this->environment["BOT_TOKEN"),'sendMessage',['chat_id' => $this->fromId,'text' =>var_export($allFields,true)]);
        //var_dump($allFields);
        $allFields = removeNullValue($allFields);
        //var_dump($allFields);
        echo 'token '.$token.PHP_EOL;
        echo 'type '.$type.PHP_EOL;
        var_dump($allFields);
        return telegramHTTPRequest($token, $type, $allFields);
    }

How to use it? Does it work?

add bot token here

$token = YOUR_BOT_TOKEN;

promote a bot to a both channel/group as admin,
insert channel ID here

$original_from_chat_id = ORIGINAL_CHAT_ID; // like this -1001122688109
$target_chat_id = TARGET_CHAT_ID; // like this -1001131688104

from which post to your desire post, update this line

$forward_from_message_id_start = 2356;
$forward_from_message_id_finish = 2501;

then run php file in cmd
php forward.php