MadelineProto/old_docs/API_docs_v72/methods/langpack_getDifference.md

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---
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:
```
$MadelineProto = new \danog\MadelineProto\API();
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$MadelineProto->session = 'mySession.madeline';
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if (isset($number)) { // Login as a user
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$MadelineProto->phone_login($number);
$code = readline('Enter the code you received: '); // Or do this in two separate steps in an HTTP API
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$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, })
```