mirror of
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562d98d805Since we have the ability to use `not` as a prefix, having rules that validate negative behaviour makes them a bit inflexible, verbose, and harder to understand. This commit will refactor the `NotEmpty`, and rename it to `Falsy`. It will no longer trim strings, because Blank does a much better job at it; it only simulates the behaviour of PHP’s native `empty()` function. Because `Falsy`, `Blank`, and `Undef` have similar behaviour, I created a page to demonstrate the difference and show when the user should use one or the other. Assisted-by: Cursor (claude-4.5-opus-high)
57 lines
1.4 KiB
Markdown
57 lines
1.4 KiB
Markdown
# Number
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- `Number()`
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Validates if the input is a number.
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```php
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v::number()->isValid(42); // true
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v::number()->isValid(acos(8)); // false
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```
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> "In computing, NaN, standing for not a number, is a numeric data type value
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> representing an undefined or unrepresentable value, especially in
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> floating-point calculations." [Wikipedia](https://en.wikipedia.org/wiki/NaN)
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## Templates
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### `Number::TEMPLATE_STANDARD`
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| Mode | Template |
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| ---------- | ---------------------------------- |
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| `default` | {{subject}} must be a valid number |
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| `inverted` | {{subject}} must not be a number |
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## Template placeholders
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| Placeholder | Description |
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| ----------- | ---------------------------------------------------------------- |
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| `subject` | The validated input or the custom validator name (if specified). |
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## Categorization
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- Numbers
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## Changelog
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| Version | Description |
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| ------: | ----------- |
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| 2.0.0 | Created |
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---
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See also:
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- [Blank](Blank.md)
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- [BoolType](BoolType.md)
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- [CallableType](CallableType.md)
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- [Falsy](Falsy.md)
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- [FloatType](FloatType.md)
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- [IntType](IntType.md)
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- [NullType](NullType.md)
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- [NumericVal](NumericVal.md)
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- [ObjectType](ObjectType.md)
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- [ResourceType](ResourceType.md)
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- [StringType](StringType.md)
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- [Type](Type.md)
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- [Undef](Undef.md)
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