respect-validation/docs/rules/StringVal.md
Henrique Moody 48405271c5
Replace placeholder "name" with "subject"
The `{{name}}` placeholder could represent different things depending on
the state of the Result, and referring to it as `{{name}}` seems
arbitrary. This commit changes it to `{{subject}}`, which is much more
generic and it describes well what that placeholder can mean.
2025-12-26 21:30:01 +01:00

56 lines
1.4 KiB
Markdown

# StringVal
- `StringVal()`
Validates whether the input can be used as a string.
```php
v::stringVal()->isValid('6'); // true
v::stringVal()->isValid('String'); // true
v::stringVal()->isValid(1.0); // true
v::stringVal()->isValid(42); // true
v::stringVal()->isValid(false); // true
v::stringVal()->isValid(true); // true
v::stringVal()->isValid(new ClassWithToString()); // true if ClassWithToString implements `__toString`
```
## Templates
### `StringVal::TEMPLATE_STANDARD`
| Mode | Template |
| ---------- | -------------------------------------- |
| `default` | {{subject}} must be a string value |
| `inverted` | {{subject}} must not be a string value |
## Template placeholders
| Placeholder | Description |
| ----------- | ---------------------------------------------------------------- |
| `subject` | The validated input or the custom validator name (if specified). |
## Categorization
- Strings
- Types
## Changelog
| Version | Description |
| ------: | ----------- |
| 2.0.0 | Created |
---
See also:
- [Alnum](Alnum.md)
- [BoolType](BoolType.md)
- [CallableType](CallableType.md)
- [FloatType](FloatType.md)
- [IntType](IntType.md)
- [NullType](NullType.md)
- [ObjectType](ObjectType.md)
- [ResourceType](ResourceType.md)
- [StringType](StringType.md)
- [Type](Type.md)