--- title: langpack.getDifference description: langpack.getDifference parameters, return type and example --- ## Method: langpack.getDifference [Back to methods index](index.md) ### Parameters: | Name | Type | Required | |----------|---------------|----------| |from\_version|[int](../types/int.md) | Yes| ### Return type: [LangPackDifference](../types/LangPackDifference.md) ### Can bots use this method: **NO** ### Errors this method can return: | Error | Description | |----------|---------------| |LANG_PACK_INVALID|The provided language pack is invalid| ### Example: ``` $MadelineProto = new \danog\MadelineProto\API(); $MadelineProto->session = 'mySession.madeline'; if (isset($number)) { // Login as a user $MadelineProto->phone_login($number); $code = readline('Enter the code you received: '); // Or do this in two separate steps in an HTTP API $MadelineProto->complete_phone_login($code); } $LangPackDifference = $MadelineProto->langpack->getDifference(['from_version' => int, ]); ``` Or, if you're using the [PWRTelegram HTTP API](https://pwrtelegram.xyz): ### As a user: POST/GET to `https://api.pwrtelegram.xyz/userTOKEN/langpack.getDifference` Parameters: from_version - Json encoded int Or, if you're into Lua: ``` LangPackDifference = langpack.getDifference({from_version=int, }) ```