setChatMemberTag — Botlify Cloud Docs

Use this method to set a tag for a regular member in a group or a supergroup. The bot must be an administrator in the chat for this to work and must have the can_manage_tags administrator right. Returns True on success.

Parameters

Parameter	Type	Required	Description
`chat_id`	Integer or String	Yes	Unique identifier for the target chat or username of the target supergroup in the format `@username`
`user_id`	Integer	Yes	Unique identifier of the target user
`tag`	String	Optional	New tag for the member; 0-16 characters, emoji are not allowed

Example

PHP — Call setChatMemberTag on Botlify Cloud

<?php
// ── Botlify Cloud .env — auto-injected, never hardcode secrets ──
$BOT_TOKEN     = getenv('BOT_TOKEN');     // Telegram bot token from @BotFather
$ADMIN_CHAT_ID = getenv('ADMIN_CHAT_ID'); // Your numeric admin Telegram user ID
$BOT_USERNAME  = getenv('BOT_USERNAME');  // Bot username without @

$resp = bot('setChatMemberTag', [
    'chat_id' => $chatId,
    'user_id' => $userId,
]);

if ($resp['ok'] ?? false) {
    $result = $resp['result']; // handle the response
}

Botlify Cloud Runtime
Credentials are auto-injected in .env — always load them with getenv(): BOT_TOKEN, ADMIN_CHAT_ID, BOT_USERNAME. Main database: database.db (SQLite, WAL mode). Runtime errors: error.log. Quick test: send to $ADMIN_CHAT_ID. Full details: Runtime Reference.