Отправка фейкового стикера в сообщения ВКонтакте

sendFakeSticker.php

<?php 

	class VK
	{

		private $token;
		private $version;
		private $url = "https://api.vk.com/method/";
		
		public function __construct($token, $version = "5.54")
		{
			$this->token = $token;
			$this->version = $version;
		}

		private function uploadPhoto($server, $path)
		{
			$file = new CURLFile($path);
			$data = [
					"file"=>$file,
					"title"=>"nicecoder"
				];
			$result = $this->post($server, $data);
			return json_decode($result)->file;
		}

		private function uploadSticker($path)
		{
			$uploadServer = $this->api("docs.getUploadServer", array(
					"v"=>$this->version,
					"type"=>"graffiti"
				))->response->upload_url;

			$photoString = $this->uploadPhoto($uploadServer, $path);
			$saveSticker = $this->api("docs.save", ["file"=>$photoString]);
			$owner_id = $saveSticker->response[0]->owner_id;
			$sticker_id = $saveSticker->response[0]->did;
			return "doc".$owner_id."_".$sticker_id;
		}

		public function sendFakeStickerToUser($to, $path)
		{
			$attachmentId = $this->uploadSticker($path);
			$sendMessage = $this->api("messages.send", [
					"v"=>$this->version,
					"peer_id"=>$to,
					"attachment"=>$attachmentId
				]);
			return $sendMessage;

		}

		public function sendFakeStickerToChat($to, $path)
		{
			$attachmentId = $this->uploadSticker($path);
			$sendMessage = $this->api("messages.send", [
					"v"=>$this->version,
					"chat_id"=>$to,
					"attachment"=>$attachmentId
				]);
			return $sendMessage;

		}

		private function post($url, $data)
		{
			$ch = curl_init( $url );
            curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            $response = curl_exec( $ch );
            curl_close( $ch );
            return $response;
		}

		public function api($method, $params = array())
		{
			$url = $this->url . $method;
			if(is_array($params)){
				$params["access_token"] = $this->token;
			}else{
				$params .= "&access_token=".$this->token;
			}
			$response = $this->post($url, $params);
            $response = json_decode($response);
            return $response;
            
		}

	}

	$token = "Токен с доступом к сообщениям";


	$vk = new VK($token);

	# отправка стикера пользователю
	$sendToUser = $vk->sendFakeStickerToUser("id пользователя", "Desktop/sticker.png");

	# отправка стикера в чат
	$sendToChat = $vk->sendFakeStickerToChat("id чата", "Desktop/sticker.png");