MadelineProto/old_docs/API_docs_v41/methods/updates_getChannelDifference.md

---
title: updates.getChannelDifference
description: updates.getChannelDifference parameters, return type and example
---
## Method: updates.getChannelDifference  
[Back to methods index](index.md)


### Parameters:

| Name     |    Type       | Required |
|----------|:-------------:|---------:|
|channel|[InputChannel](../types/InputChannel.md) | Yes|
|filter|[ChannelMessagesFilter](../types/ChannelMessagesFilter.md) | Yes|
|pts|[int](../types/int.md) | Yes|
|limit|[int](../types/int.md) | Yes|


### Return type: [updates\_ChannelDifference](../types/updates_ChannelDifference.md)

### Example:


```
$MadelineProto = new \danog\MadelineProto\API();
if (isset($token)) { // Login as a bot
    $MadelineProto->bot_login($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);
}

$updates_ChannelDifference = $MadelineProto->updates->getChannelDifference(['channel' => InputChannel, 'filter' => ChannelMessagesFilter, 'pts' => int, 'limit' => int, ]);
```

Or, if you're using the [PWRTelegram HTTP API](https://pwrtelegram.xyz):

### As a bot:

POST/GET to `https://api.pwrtelegram.xyz/botTOKEN/madeline`

Parameters:

* method - updates.getChannelDifference
* params - `{"channel": InputChannel, "filter": ChannelMessagesFilter, "pts": int, "limit": int, }`



### As a user:

POST/GET to `https://api.pwrtelegram.xyz/userTOKEN/updates.getChannelDifference`

Parameters:

channel - Json encoded InputChannel
filter - Json encoded ChannelMessagesFilter
pts - Json encoded int
limit - Json encoded int



Or, if you're into Lua:

```
updates_ChannelDifference = updates.getChannelDifference({channel=InputChannel, filter=ChannelMessagesFilter, pts=int, limit=int, })
```