How to store value into session on webhook PHP for telegram bot

Question

I am making myself crazy trying to solve this problem.
I have a PHP webhook page like this:

function processMessage($message)
{
    if (isset($message['text'])) {
        $text = $message['text'];

        if (strpos($text, "/start") === 0) {
            apiRequestJson("sendMessage", array(
                'chat_id'      => $chat_id,
                "text"         => 'Benvenuto ' . $firstname . ' ' . $lastname . ' sul BOT di MIMANCHITU, dimmi cosa vuoi fare?',
                'reply_markup' => array(
                    'keyboard'          => array(array('/GUIDE', '/DOMANDE')),
                    'one_time_keyboard' => true,
                    'resize_keyboard'   => true
                )
            ));

        } else if ($text === "/DOMANDE") {
            apiRequest("sendMessage", array(
                'chat_id' => $chat_id,
                "text"    => 'Inserisci la parola da cercare tra le risposte della Dottoressa [' . $azione . '] XXX:'
            ));

        } else if (strpos($text, '/') !== true) {
            $curl = curl_init();
            curl_setopt_array($curl, array(
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_VERBOSE        => true,
                CURLOPT_URL            => 'http://www.domain.it/bot/search_dom.php',
                CURLOPT_POSTFIELDS     => array(
                    'parola' => $text
                )
            ));

            $resp = curl_exec($curl);
            $obj  = json_decode($resp);
            curl_close($curl);

            foreach ($obj as $value) {
                apiRequest(......));
            }

        } else if ($text === "/GUIDE") {
            apiRequest("sendMessage", array(
                'chat_id' => $chat_id,
                "text"    => 'Cerca una parola per visualizzare i contenuti trovati tra le Guide al Sesso di MIMANCHITU:'
            ));
        }
    }
}

The user has two choices:

clicking /GUIDE to search, writing a word, into mysql db with tutorial ...
clicking /DOMANDE to search, writing a word, into mysql db with question...

My problem is how to check if user searches in /GUIDE or /DOMANDE after choosing the button from a custom keyboard! I was thinking about setting a PHP SESSION parameter, but that doesn't work! Any ideas?

Try save key-value pair to file or database. key may be `$chat_id` — Dmitry, Jun 21 '16 at 12:48

Seyfi · Answer 1 · 2018-11-15T21:25:33.733

You can use InlineKeyboardMarkup instead of ReplyKeyboardMarkup. inline keayboards return query_callback that include former massage and also user reply to that massage. this is sample JSON reply from Telegram when an inline_keyboard is pressed:

{
  "update_id": 88888888,
  "callback_query": {
    "id": "99999999999999999",
    "from": {
      "id": XXXXXXXXXX,
      "first_name": "ABCD",
      "last_name": "CDEF"
    },
    "message": {
      "message_id": 56,
      "from": {
        "id": YYYYYYYYYY,
        "first_name": "myBotName",
        "username": "myBot"
      },
      "chat": {
        "id": XXXXXXXXXX ,
        "first_name": "ABCD",
        "last_name": "CDEF",
        "type": "private"
      },
      "date": 1466703216,
      "text": "someText"
    },
    "data": "returnValue"
  }
}

score -1 · Answer 2 · answered Jun 27 '16 at 12:37

I preferr use php session. So I use Curl to call a php page to store and read session into mysql db:

$link = mysqli_connect(...) or die("Error " . mysqli_error($link));
$query = "SELECT * FROM MMT_BOT WHERE CHAT_ID = '".$_POST["chat"]."'" or die("Error in the consult.." . mysqli_error($link));
$result = mysqli_query($link, $query);
$res_num = mysqli_num_rows($result);
if ($res_num === 0) {
        $query = "INSERT INTO MMT_BOT (CHAT_ID, SESSION) VALUES ('".$_POST["chat"]."','".$_POST["session"]."')" or die("Error in the consult.." . mysqli_error($link));
        $link->query($query);
        $query = "SELECT * FROM MMT_BOT WHERE CHAT_ID = '".$_POST["chat"]."'" or die("Error in the consult.." . mysqli_error($link));
        $result = mysqli_query($link, $query);
    } else {
        $query = "UPDATE MMT_BOT SET SESSION = '".$_POST["session"]."' WHERE CHAT_ID = '".$_POST["chat"]."'" or die("Error in the consult.." . mysqli_error($link));
        $link->query($query);
        $query = "SELECT * FROM MMT_BOT WHERE CHAT_ID = '".$_POST["chat"]."'" or die("Error in the consult.." . mysqli_error($link));
        $result = mysqli_query($link, $query);
    }
        $rows = array();
            while ($row = mysqli_fetch_array($result, MYSQLI_ASSOC)) {
              $rows[] = array('sessione' => $row['SESSION'],'chat_id' => $row['CHAT_ID']);
        }
echo json_encode($rows);

So I could store the step of each answer and make question depending the step! Is useful also to store user info!

How to store value into session on webhook PHP for telegram bot

2 Answers2