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47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
# Countable
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- `Countable()`
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Validates if the input is countable, in other words, if you're allowed to use
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[count()](http://php.net/count) function on it.
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```php
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v::countable()->isValid([]); // true
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v::countable()->isValid(new ArrayObject()); // true
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v::countable()->isValid('string'); // false
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```
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## Templates
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### `Countable::TEMPLATE_STANDARD`
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| Mode | Template |
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| ---------- | ----------------------------------------- |
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| `default` | {{subject}} must be a countable value |
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| `inverted` | {{subject}} must not be a countable value |
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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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- Types
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## Changelog
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| Version | Description |
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| ------: | ----------------------- |
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| 1.0.0 | Created from `ArrayVal` |
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---
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See also:
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- [ArrayType](ArrayType.md)
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- [ArrayVal](ArrayVal.md)
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- [Instance](Instance.md)
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- [IterableType](IterableType.md)
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- [IterableVal](IterableVal.md)
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