How to display response after button click?

Question

Bots

The following problem arose - I wrote a bot in a telegram (without libraries), connected a webhook to it and got stuck at the moment with the buttons, or rather with processing the request after clicking on them. In theory, after clicking, another message from the bot should come, but in the end nothing comes in response.

Bot executable code:

<?php

include 'config.php'; // Токен бота
include 'functions.php'; // Основные функции

// В теле запроса содержится JSON, php://input читает сырой запрос, а json_decode расшифровывает в виде массива
$update = json_decode(file_get_contents('php://input'), JSON_OBJECT_AS_ARRAY);

$chat_id = $update['message']['chat']['id']; // Определяет ID чата
$message = $update['message']['text']; // Определяет текст сообщения
$message_id = ['callback_query']['message']['message_id']; // Определяет ID сообщения

$callback_query = $update['callback_query'];
$callback_query_id = $callback_query['id'];
$callback_data = $callback_query['data'];

// Делается запрос
$method = 'setWebhook';
$url = 'https://api.telegram.org/bot' . BOT_TOKEN . '/' . $method;
$options = [
    'url' => 'https://example.ru/bot.php'
];

// То, что возвращается из запроса
$response = file_get_contents($url . '?' . http_build_query($options));
var_dump($response);

if (strpos($message, "/help") === 0) { // Команда /help
    $post = [
      'chat_id' => $chat_id,
      'text' => 'Эта памятка создана для объяснения различных
терминов, посуды',
        $help_buttons = [
            ,
            
        ],
        'reply_markup' => inline_keyboard($help_buttons),
    ];
    sendRequest('sendMessage', $post);
} else {
// Начальное сообщение
    $post = [
        'chat_id' => $chat_id,
        'text' => 'Давай определимся с категорией коктейлей:',
        $main_menu = [
            ,
            ,
            
        ],
        'reply_markup' => inline_keyboard($main_menu)
    ];
    sendRequest('sendMessage', $post);
}

switch ($callback_data) {
    case 'the_unforgettables':
        $post = [
            'chat_id' => $chat_id,
            'text' => 'Отлично, теперь выбери любой коктейль из списка:',
            $InlineTheUnforgettables = [
                ,
                ,
                
            ],
            'reply_markup' => inline_keyboard($InlineTheUnforgettables),
        ];
        sendRequest('sendMessage', $post);
        break;
}

Message sending function:

function sendRequest($method, $params = [])
{
    if (!empty($params)) {
        $url = BOT_URL . $method . '?' . http_build_query($params);
    } else {
        $url = BOT_URL . $method;
    }
    return json_decode(
        file_get_contents($url),
        JSON_OBJECT_AS_ARRAY
    );
}

At the same time, the following error hangs in the webhook:

string(64) "{"ok":true,"result":true,"description":"Webhook is already set"}"
Warning: file_get_contents(https://api.telegram.org/bot[BOT_TOKEN]/sendMessage?
text=%D0%94%D0%B0%D0%B2%D0%B0%D0%B9+%D0%BE%D0%BF%D1%80%D0%B5%D0%B4%D0%B5%D0%BB%D0%B8%D0%B
C%D1%81%D1%8F+%D1%81+%D0%BA%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D0%B5%D0%B9+%D0%BA%
D0%BE%D0%BA%D1%82%D0%B5%D0%B9%D0%BB%D0%B5%D0%B9%3A&0%5B0%5D%5B0%5D%5Btext%5D=%D0%9D%D0%B5
%D0%B7%D0%B0%D0%B1%D1%8B%D0%B2%D0%B0%D0%B5%D0%BC%D1%8B%D0%B5+%E2%99%BE&0%5B0%5D%5B0%5D%5B
callback_data%5D=the_unforgettables&0%5B1%5D%5B0%5D%5Btext%5D=%D0%A1%D0%BE%D0%B2%D1%80%D0
%B5%D0%BC%D0%B5%D0%BD%D0%BD%D0%B0%D1%8F+%D0%9A%D0%BB%D0%B0%D1%81%D1%81%D0%B8%D0%BA%D0%B0+
%F0%9F%8D%B9&0%5B1%5D%5B0%5D%5Bcallback_data%5D=contemporary_classic&0%5B2%5D%5B0%5D%5Bte
xt%5D=%D0%9D%D0%B0%D0%BF%D0%B8%D1%82%D0%BA%D0%B8+%D0%9D%D0%BE%D0%B2%D0%BE%D0%B9+%D0%AD%D1
%80%D1%8B+%F0%9F%86%95&0%5B2%5D%5B0%5D%5Bcallback_data%5D=new_era_drinks&reply_markup=%7B
%22inline_keyboard%22%3A%5B%5B%7B%22text%22%3A%22%5Cu041d%5Cu0435%5Cu0437%5Cu0430%5Cu0431
% in /home/db_name/public_html/example.ru/functions.php on line 12

That is, the webhook complains about this line - file_get_contents($url)

What exactly could be the error and how can it be fixed? Is it the reason why another bot message is not displayed when the button is clicked?

Answer 1

First, I dealt with the error in the webhook - I did not find the reason for its occurrence, since the description field was absent in the file, therefore, it was difficult to understand what exactly caused the error. I replaced the send message function with another one:

function sendRequest($method, $post = '') {
$ch = curl_init('https://api.telegram.org/bot' . BOT_TOKEN . '/' . $method);

if ($post) {
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
}

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}

It works the same way and doesn't cause any errors.
Then I dealt with the processing of buttons, or rather their reverse queries (callback_query/callback_data). I created two files - data, where I get chat_id, message, message_id, I need this to send primary messages (by type of greeting, commands). Then I created a callback_query file, where I placed the following lines -

<?php

$data = json_decode(file_get_contents('php://input'));


    $callback_query = $data->callback_query;
    $callback_query_id = $callback_query->id;
    $callback_data = $callback_query->data;

    $from = $callback_query->from;

    $user_id = $from->id;
    $username = $from->username;

    $message = $callback_query->message;
    $message_id = $message->message_id;
    $callback_message_text = $message->text;

    $chat = $message->chat;
    $chat_id = $chat->id;

    $inline_message_id = $callback_query->inline_message_id;

With the help of them, you can receive a return request from clicking on the buttons. My main code now looks like this:

<?php

include 'config.php'; // Токен бота
include 'functions.php'; // Основные функции
include 'data.php'; // Получение данных

// Делается запрос
$method = 'setWebhook';
$url = 'https://api.telegram.org/bot' . BOT_TOKEN . '/' . $method;
$options = [
    'url' => 'https://example.ru/bot.php'
];

// То, что возвращается из запроса
$response = file_get_contents($url . '?' . http_build_query($options));
var_dump($response);

if (strpos($message, "/help") === 0) { // Команда /help
    $post = [
      'chat_id' => $chat_id,
      'text' => 'Эта памятка создана для объяснения различных барменских
терминов, посуды',
        $help_buttons = [
            ,
            
        ],
        'reply_markup' => inline_keyboard($help_buttons)
    ];
    sendRequest('sendMessage', $post);
} else {
// Начальное сообщение
    $post = [
        'chat_id' => $chat_id,
        'text' => 'Давай определимся с категорией коктейлей:',
        $main_menu = [
            ,
            ,
            
        ],
        'reply_markup' => inline_keyboard($main_menu)
    ];
    sendRequest('sendMessage', $post);
}

include 'callback_query.php'; // Получение обратных запросов

switch ($callback_data) {
    case 'the_unforgettables':
        $post = [
            'chat_id' => $chat_id,
            'message_id' => $message_id,
            'text' => 'Отлично, теперь выбери любой коктейль из списка:',
            $InlineTheUnforgettables = [
                ,
                ,
                ,
                ,
                ,
                ,
                ,
                ,
                ,
                
            ],
            'reply_markup' => inline_keyboard($InlineTheUnforgettables),
        ];
        sendRequest('editMessageText', $post);
        break;
}