mirror of
https://github.com/Respect/Validation.git
synced 2026-03-15 23:05:45 +01:00
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.
85 lines
2.1 KiB
Markdown
85 lines
2.1 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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-->
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# NullOr
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- `NullOr(Validator $validator)`
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Validates the input using a defined validator when the input is not `null`.
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## Usage
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```php
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v::nullOr(v::email())->assert(null);
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// Validation passes successfully
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v::nullOr(v::email())->assert('example@example.com');
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// Validation passes successfully
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v::nullOr(v::email())->assert('not an email');
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// → "not an email" must be an email address or must be null
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```
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## Prefix
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For convenience, you can use `nullOr` as a prefix to any validator:
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```php
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v::nullOrEmail()->assert('not an email');
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// → "not an email" must be an email address or must be null
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v::nullOrBetween(1, 3)->assert(2);
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// Validation passes successfully
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v::nullOrBetween(1, 3)->assert(null);
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// Validation passes successfully
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```
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## Templates
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### `NullOr::TEMPLATE_STANDARD`
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| Mode | Template |
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| ---------: | :------------------- |
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| `default` | or must be null |
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| `inverted` | and must not be null |
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## Template as suffix
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The template serves as a suffix to the template of the inner validator.
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```php
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v::nullOr(v::alpha())->assert('has1number');
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// → "has1number" must consist only of letters (a-z) or must be null
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v::not(v::nullOr(v::alpha()))->assert("alpha");
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// → "alpha" must not consist only of letters (a-z) and must not be null
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```
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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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- Nesting
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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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| 3.0.0 | Renamed to `NullOr` |
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| 2.0.0 | Created as `Nullable` |
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## See Also
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- [Attributes](Attributes.md)
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- [NullType](NullType.md)
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- [UndefOr](UndefOr.md)
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