sendfile.php

<?php
// SPDX-License-Identifier: Public domain
/**
 * @author Ammar Faizi <[email protected]>
 *
 * A simple example for uploading a file via bot Telegram.
 *
 * Link: https://discord.com/channels/845302963739033611/845302963739033613/1057316446662819860
 */
const BOT_TOKEN = "xxxxxxxxxxxxxxxxxxxxxxxxx";


function curl($url, $opt = [])
{
	$ch = curl_init($url);
	$opt[CURLOPT_RETURNTRANSFER] = true;
	curl_setopt_array($ch, $opt);
	$out = curl_exec($ch);
	if (!$out) {
		$ern = curl_errno($ch);
		$err = curl_error($ch);
		printf("Curl error: (%d) %s\n", $ern, $err);
	}
	return $out;
}

function sendDocument($arg)
{
	$opt = [
		CURLOPT_POST => true,
		CURLOPT_POSTFIELDS => $arg
	];
	return curl("https://api.telegram.org/bot".BOT_TOKEN."/sendDocument", $opt);
}

$chat_id = -1001226735471;

$a = sendDocument([
	"chat_id"   => $chat_id,
	"caption"   => "Ini file a.txt",
	"document"  => new CurlFile("/tmp/a.txt")
]);
printf("a = %s\n\n", $a);

$b = sendDocument([
	"chat_id"   => $chat_id,
	"caption"   => "Ini file b.txt",
	"document"  => new CurlFile("/tmp/b.txt")
]);
printf("b = %s\n\n", $b);

$c = sendDocument([
	"chat_id"   => $chat_id,
	"caption"   => "Ini file c.txt",
	"document"  => new CurlFile("/tmp/c.txt")
]);
printf("c = %s\n\n", $c);