respect-validation/docs/validators/Control.md
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<!--
SPDX-FileCopyrightText: (c) Respect Project Contributors
SPDX-License-Identifier: MIT
-->
# Control
- `Control()`
- `Control(string ...$additionalChars)`
Validates if all of the characters in the provided string, are control
characters.
```php
v::control()->assert("\n\r\t");
// Validation passes successfully
```
## Templates
### `Control::TEMPLATE_STANDARD`
| Mode | Template |
| ---------: | :----------------------------------------------- |
| `default` | {{subject}} must only contain control characters |
| `inverted` | {{subject}} must not contain control characters |
### `Control::TEMPLATE_EXTRA`
| Mode | Template |
| ---------: | :----------------------------------------------------------------------- |
| `default` | {{subject}} must only contain control characters and {{additionalChars}} |
| `inverted` | {{subject}} must not contain control characters or {{additionalChars}} |
## Template placeholders
| Placeholder | Description |
| ----------------- | ---------------------------------------------------------------- |
| `additionalChars` | Additional characters that are considered valid. |
| `subject` | The validated input or the custom validator name (if specified). |
## Categorization
- Strings
## Changelog
| Version | Description |
| ------: | :-------------------------------- |
| 2.0.0 | Renamed from `Cntrl` to `Control` |
| 0.5.0 | Created |
## See Also
- [Alnum](Alnum.md)
- [Printable](Printable.md)
- [Punct](Punct.md)
- [Space](Space.md)