how to use callback data in telegram bot - php

Question

i'm using this library https://github.com/Eleirbag89/TelegramBotPHP to create telegram bot
i want to get user tweeter username like:#username
how to use callback data and then use callback_data value
ex:
bot: username
user: #alex
bot: password
user: 985468
if($text == '🚀 Submit your Detalis'){
$option = array(
array($telegram->buildInlineKeyBoardButton('✅ Done', $url, $callback_data = 'checkIsMember')) );
$keyb = $telegram->buildInlineKeyBoard($option);
$content = array('chat_id' => $chat_id, 'reply_markup' => $keyb, 'text' => '
Join Our Telegram Channel
<b> Click "✅ Done" to continue </b>
');
$telegram->sendMessage($content);
}
if($text == 'checkIsMember'){
$content = array('chat_id' => $chat_id, 'text' => '
👉 Submit your Twitter username below (Included #)
Ex : #username
');
$telegram->sendMessage($content);
}

Answer 1

Set webhook on file where bot is placed Site must have SSL (https).
https://api.telegram.org/bot(your token)/setWebhook?url=https://example.com/bot_directory/bot.php
Than process data and write bot
$update = json_decode(file_get_contents('php://input'), TRUE);
$botToken = "(your token)";
$botAPI = "https://api.telegram.org/bot" . $botToken;
$msg = $update['message']['text'];
$user_id = $update['message']['from']['id'];
//Simple send button when user send message
$data = http_build_query([
'text' => 'Hi it is my bot',
'chat_id' => $update['message']['from']['id'],
]);
$keyboard = json_encode([
"inline_keyboard" => [
[
[
"text" => "say Hi",
"callback_data" => "say_h"
],
]
],
"resize_keyboard" => true
]);
file_get_contents($botAPI . "/sendMessage?{$data}&reply_markup={$keyboard}");
if (isset($update['callback_query'])) {
if ($update['callback_query']['data'] == 'say_h'){
// your code here when button pressed
}
}