Simple login system using telegram bot.
Remember to set up config file before use it.
define('BOT_TOKEN', 'bot123456:ABC-DEF1234ghIkl-zyx57W2v1u123ew11');
$userList = [
'username' => '01234567'
];
Submit username then check your telegram chat to see access code.
The access code remains valid only 30 seconds.