MadelineProto/docs/TD_docs/methods/changeChatTitle.md

title	description
changeChatTitle	Changes chat title. Title can't be changed for private chats. Title will not change until change will be synchronized with the server. Title will not be changed if application is killed before it can send request to the server. - There will be update about change of the title on success. Otherwise error will be returned

Method: changeChatTitle

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Changes chat title. Title can't be changed for private chats. Title will not change until change will be synchronized with the server. Title will not be changed if application is killed before it can send request to the server. - There will be update about change of the title on success. Otherwise error will be returned

Params:

Name	Type	Required	Description
chat_id	InputPeer	Yes	Chat identifier
title	string	Yes	New title of a chat, 0-255 characters

Return type: Ok

Example:

$MadelineProto = new \danog\MadelineProto\API();
if (isset($token)) { // Login as a bot
    $this->bot_login($token);
}
if (isset($number)) { // Login as a user
    $sentCode = $MadelineProto->phone_login($number);
    echo 'Enter the code you received: ';
    $code = '';
    for ($x = 0; $x < $sentCode['type']['length']; $x++) {
        $code .= fgetc(STDIN);
    }
    $MadelineProto->complete_phone_login($code);
}

$Ok = $MadelineProto->changeChatTitle(['chat_id' => InputPeer, 'title' => string, ]);

Or, if you're into Lua:

Ok = changeChatTitle({chat_id=InputPeer, title=string, })