Create own bot on telegram with php

Question

I saw a couple of days ago this tutorial on youtube. It was very interesting, so I decided to make a own bot. I used the code from the tutorial as a template:

<?php

$bottoken = "*****";
$website = "https://api.telegram.org/bot".$bottoken;


$update = file_get_contents('php://input');

$updatearray = json_decode($update, TRUE);

$length = count($updatearray["result"]);
$chatid = $updatearray["result"][$length-1]["message"]["chat"]["id"];
$text = $updatearray["result"][$length-1]["message"]["text"];

if($text == 'hy'){
    file_get_contents($website."/sendmessage?chat_id=".$chatid."&text=hello");
} 
elseif($text == 'ciao'){
    file_get_contents($website."/sendmessage?chat_id=".$chatid."&text=bye");
}

The script worked if I execute the script manually. However when I use the webhook it doesn't work anymore. The tutorial said that $update = file_get_contents('php://input'); is the right way, to be used before $update = file_get_contents($website."/getupdates");. My question how can I use php://input to execute my script automatically? The script is on a server from "one.com" and the certificate is also from "one.com".

Solution 1

If you use selfsigned ssl you have to point to the ssl path ,, use the ssh to run this command after filling it with your real data ,,

curl -F "url=https://example.com/myscript.php" -F "certificate=@/etc/apache2/ssl/apache.crt" https://api.telegram.org/bot<SECRETTOKEN>/setWebhook

Solution 2

After change to WebHook method, you need to put as follows, since now we are going to handle one message at time. For me works perfectly.

instead

$chatId = $updateArray["result"][0]["message"]["chat"]["id"];

to

$chatID = $update["message"]["chat"]["id"];

Comments

[SJDS]

I have the same problem on two seperate domains. One with GlobalSign and one with Let's Encrypt. Could this still be the problem? I see many people struggling with this issue.

[SJDS]

Actually this may be true, but it's the step prior to this that's causing the problem: $update remains empty when you use the webhook combined with $update = file_get_contents('php://input');