mirror of
https://github.com/Respect/Validation.git
synced 2026-03-15 14:55:44 +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.
88 lines
2.7 KiB
Markdown
88 lines
2.7 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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# Alpha
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- `Alpha()`
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- `Alpha(string ...$additionalChars)`
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Validates whether the input contains only alphabetic characters. This is similar
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to [Alnum](Alnum.md), but it does not allow numbers.
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```php
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v::alpha(' ')->assert('some name');
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// Validation passes successfully
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v::alpha()->assert('some name');
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// → "some name" must consist only of letters (a-z)
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v::alpha()->assert('Cedric-Fabian');
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// → "Cedric-Fabian" must consist only of letters (a-z)
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v::alpha('-')->assert('Cedric-Fabian');
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// Validation passes successfully
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v::alpha('-', '\'')->assert('\'s-Gravenhage');
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// Validation passes successfully
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```
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You can restrict case using the [Lowercase](Lowercase.md) and
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[Uppercase](Uppercase.md) validators.
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```php
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v::alpha()->uppercase()->assert('example');
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// → "example" must consist only of uppercase letters
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```
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## Templates
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### `Alpha::TEMPLATE_STANDARD`
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| Mode | Template |
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| ---------: | :------------------------------------------------- |
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| `default` | {{subject}} must consist only of letters (a-z) |
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| `inverted` | {{subject}} must not consist only of letters (a-z) |
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### `Alpha::TEMPLATE_EXTRA`
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| Mode | Template |
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| ---------: | :------------------------------------------------------------------------ |
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| `default` | {{subject}} must consist only of letters (a-z) or {{additionalChars}} |
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| `inverted` | {{subject}} must not consist only of letters (a-z) or {{additionalChars}} |
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## Template placeholders
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| Placeholder | Description |
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| ----------------- | ---------------------------------------------------------------- |
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| `additionalChars` | Additional characters that are considered valid. |
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| `subject` | The validated input or the custom validator name (if specified). |
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## Categorization
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- Strings
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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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| 2.0.0 | Removed support to whitespaces by default |
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| 0.3.9 | Created |
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## See Also
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- [Alnum](Alnum.md)
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- [Charset](Charset.md)
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- [Consonant](Consonant.md)
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- [Decimal](Decimal.md)
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- [Digit](Digit.md)
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- [Emoji](Emoji.md)
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- [Lowercase](Lowercase.md)
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- [Regex](Regex.md)
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- [Spaced](Spaced.md)
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- [Uppercase](Uppercase.md)
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- [Vowel](Vowel.md)
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