php: telegram bot api example

index.php

<?php
// get API KEY: https://core.telegram.org/bots#botfather
// get chad id: http://stackoverflow.com/questions/31078710/how-to-obtain-telegram-chat-id-for-a-specific-user

$api_key = 'FAKE1234';
$chat_id = '7850602'
$url = "https://api.telegram.org/bot".$api_key."/";

// UNCOMMENT desired method

// getMe
$method = 'getMe';
$params = array
(
);

// sendMessage
/*
$method = 'sendMessage';
$params = array
(
	'chat_id' => $chat_id,
	'text' => 'kaixo',
	'disable_web_page_preview' => null,
	'reply_to_message_id' => null,
	'reply_markup' => null
);
*/

// forwardMessage
/*
$method = 'forwardMessage';
$params = array
(
	'chat_id' => $chat_id,
	'from_chat_id' => '',
	'message_id' => ''
);
*/

// getUpdates
/*
$method = 'getUpdates';
$params = array
(
	'offset' => null,
	'limit' => null,
	'timeout' => null
);
*/

// sendPhoto
/*
$method = 'sendPhoto';
$filename = '/home/zital/Downloads/gif/hxTS1AB.jpg'

if(class_exists('CURLFile'))
	$cfile = new CURLFile($filename);
else
	$cfile = "@".$filename;

$params = array
(
	'chat_id' => $chat_id,
	'photo' => $cfile,
	'reply_to_message_id' => null,
	'reply_markup' => null
);
*/

// sendAudio
/*
$method = 'sendAudio';
$filename = '/home/zital/Downloads/loop.mp3'

if(class_exists('CURLFile'))
	$cfile = new CURLFile($filename);
else
	$cfile = "@".$filename;

$params = array
(
	'chat_id' => $chat_id,
	'audio' => $cfile,
        'reply_to_message_id' => null,
        'reply_markup' => null
);
*/

// sendVideo
/*
$method = 'sendVideo';
$filename = '/home/zital/Downloads/output.mp4';

if(class_exists('CURLFile'))
	$cfile = new CURLFile($filename);
else
	$cfile = "@".$filename;

$params = array
(
	'chat_id' => $chat_id,
	'video' => $cfile,
        'reply_to_message_id' => null,
        'reply_markup' => null
);
*/

// sendDocument
/*
$method = 'sendDocument';
$filename = '/home/zital/Downloads/OYSE002.pdf'

if(class_exists('CURLFile'))
        $cfile = new CURLFile($filename);
else
        $cfile = "@".$filename;

$params = array
(
	'chat_id' => $chat_id,
        'document' => $cfile,
        'reply_to_message_id' => null,
        'reply_markup' => null
);
*/

// sendLocation
/*
$method = 'sendLocation';
$params = array
(
	'chat_id' => $chat_id,
        'latitude' => '43.4193408',
	'longitude' => '-2.7253832,16',
        'reply_to_message_id' => null,
        'reply_markup' => null
);
*/

$c = new curl();
$r = $c->request($url.$method, 'POST', $params);

$j = json_decode($r, true);
if($j)
	print_r($j);
else
	echo $r;

class curl
{
    private $curl_obj;

    public function __construct()
    {
        if(!function_exists('curl_init'))
        {
            echo 'ERROR: Install CURL module for php';
            exit();
        }
        $this->init();
    }

    public function init()
    {
        $this->curl_obj = curl_init();
    }

    public function request($url, $method = 'GET', $params = array(), $opts = array())
    {
        $method = trim(strtoupper($method));

        // default opts
        $opts[CURLOPT_FOLLOWLOCATION] = true;
        $opts[CURLOPT_RETURNTRANSFER] = 1;
        //$opts[CURLOPT_FRESH_CONNECT] = true;

        if($method==='GET')
	{
		$url .= "?".$params;
		$params = http_build_query($params);
	}
        elseif($method==='POST')
        {
            $opts[CURLOPT_POST] = 1;
            $opts[CURLOPT_POSTFIELDS] = $params;
        }

        $opts[CURLOPT_URL] = $url;

	curl_setopt_array($this->curl_obj, $opts);

        $content = curl_exec($this->curl_obj);
        return $content;
    }

    public function close()
    {
        if(gettype($this->curl_obj) === 'resource')
            curl_close($this->curl_obj);
    }

    public function __destruct()
    {
        $this->close();
    }
}