# Base64

- `Base64()`

Validate if a string is Base64-encoded.

```php
v::base64()->isValid('cmVzcGVjdCE='); // true
v::base64()->isValid('respect!'); // false
```

## Templates

### `Base64::TEMPLATE_STANDARD`

| Mode       | Template                                        |
| ---------- | ----------------------------------------------- |
| `default`  | {{subject}} must be a base64 encoded string     |
| `inverted` | {{subject}} must not be a base64 encoded string |

## Template placeholders

| Placeholder | Description                                                      |
| ----------- | ---------------------------------------------------------------- |
| `subject`   | The validated input or the custom validator name (if specified). |

## Categorization

- Strings

## Changelog

| Version | Description |
| ------: | ----------- |
|   2.0.0 | Created     |

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See also:

- [Base](Base.md)