PHP bot Kodlari | Dasturchilar

<?php
ob_start();

define('API_KEY', 'BOT_TOKEN_YOZING');

function bot($method, $datas = []) {
    $url = "https://api.telegram.org/bot" . API_KEY . "/" . $method;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $datas);
    $res = curl_exec($ch);
    if(curl_error($ch)){
        var_dump(curl_error($ch));
    }else{
        return json_decode($res);
    }
}

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

if(isset($update->message)){
    $message = $update->message;
    $text = $message->text;
    $chat_id = $message->chat->id;
    $message_id = $message->message_id;

    if($text == "/start"){
        bot('sendMessage', [
            'chat_id' => $chat_id,
            'text' => "Salom <tg-emoji emoji-id='5253555828409000478'>👋</tg-emoji>\n\nMenga istalgan matn yoki havola yuboring men uni tezda QR kodga aylantirib beraman.",
            'parse_mode' => 'HTML',
            'reply_to_message_id' => $message_id
        ]);
    } 
    elseif(!empty($text)) {
        $qr_url = "https://quickchart.io/qr?text=" . urlencode($text) . "&size=300";

        bot('sendPhoto', [
            'chat_id' => $chat_id,
            'parse_mode' => 'HTML',
            'photo' => $qr_url,
            'caption' => "<tg-emoji emoji-id='6025949887789538317'>🖼</tg-emoji> Sizning QR kodingiz tayyor\n\n<tg-emoji emoji-id='5190679246657320586'>😶‍🌫️</tg-emoji> Biriktirilgan matn: $text",
            'reply_to_message_id' => $message_id
        ]);
    }
}
?>