---
application: "Intervention Validation"
version: "Version 3"
status: "eol"
---

# Base64 Rule

## Validate a Base64 Encoded String



> public Intervention\Validation\Rules\Base64::__construct()

The field under validation must be [Base64 encoded](https://en.wikipedia.org/wiki/Base64).

### Parameters

none

### Example

```php
use Intervention\Validation\Rules\Base64;

$validator = Validator::make($request->all(), [
    'attribute-key' => new Base64(),
]);
```

---

## Become a Sponsor

### Intervention Validation needs your help to keep the project going

Intervention Validation is non-commercial, open source licensed and completely free to use. The considerable
effort required to maintain and develop the software is only possible with the financial support
of sponsors. There are two ways in which you can support this project.

- Support via [GitHub Sponsors](https://github.com/sponsors/Intervention)
- Support via [Ko-Fi](https://ko-fi.com/interventionphp)