MadelineProtoDocs/old_docs/API_docs_v27/types/bytes.md

---
title: bytes
description: A string of variable length
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
---
## Type: bytes  
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```php
$bytes = "simple string of bytes";
```

Internally, an object of type `\danog\MadelineProto\TL\Types\Bytes`.  
When casted to string, turns into a string of bytes of variable length, with length smaller than or equal to 16777215.  
When JSON-serialized, turns into an array of the following format:  
```
[
   '_'     => 'bytes',
   'bytes' => base64_encode($contents)
];
```