mirror of
https://github.com/Respect/Validation.git
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16148e9593
- Remove redundant "valid" prefix: Date, DateTime, DateTimeDiff, Domain, Email, Iban, Imei, Ip, Isbn, Json, LanguageCode, LeapDate, LeapYear, Luhn, MacAddress, NfeAccessKey, Nif, Nip, Pesel, Phone, Pis, PolishIdCard, PostalCode, Roman, Slug, Tld, Url, Uuid, Version. - Remove redundant "value" suffix ArrayVal, BoolVal, Countable, FloatVal, IntVal, IterableVal, NumericVal, ScalarVal, StringVal. - Standardize "consist only of" phrasing Alnum, Alpha, Cntrl, Consonant, Digit, Graph, Lowercase, Printable, Punct, Space, Spaced, Uppercase, Vowel, Xdigit. - Improve file accessibility messages Directory, Executable, File, Image, Readable, SymbolicLink, Writable. - Improve grammar and article usage CreditCard, Extension, Mimetype, Regex, Size.
59 lines
1.5 KiB
Markdown
59 lines
1.5 KiB
Markdown
<!--
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SPDX-License-Identifier: MIT
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SPDX-FileCopyrightText: (c) Respect Project Contributors
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SPDX-FileContributor: Alexandre Gomes Gaigalas <alganet@gmail.com>
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SPDX-FileContributor: Henrique Moody <henriquemoody@gmail.com>
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SPDX-FileContributor: João Torquato <joao.otl@gmail.com>
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-->
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# 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()->assert([]);
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// Validation passes successfully
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v::countable()->assert(new ArrayObject());
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// Validation passes successfully
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v::countable()->assert('string');
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// → "string" must be countable
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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 countable |
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| `inverted` | {{subject}} must not be countable |
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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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| 3.0.0 | Templates changed |
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| 1.0.0 | Created from `ArrayVal` |
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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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