respect-validation/docs/validators/Uuid.md
Alexandre Gomes Gaigalas 16148e9593 Standardize and improve validation message templates
- 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.
2026-02-03 19:58:55 +00:00

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SPDX-License-Identifier: MIT
SPDX-FileCopyrightText: (c) Respect Project Contributors
SPDX-FileContributor: Alexandre Gomes Gaigalas <alganet@gmail.com>
SPDX-FileContributor: Dick van der Heiden <d.vanderheiden@inthere.nl>
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# Uuid
- `Uuid()`
- `Uuid(int $version)`
Validates whether the input is a valid UUID. It also supports validation of
specific versions 1 to 8.
```php
v::uuid()->assert('eb3115e5-bd16-4939-ab12-2b95745a30f3');
// Validation passes successfully
v::uuid()->assert('Hello World!');
// → "Hello World!" must be a UUID
v::uuid()->assert('eb3115e5bd164939ab122b95745a30f3');
// Validation passes successfully
v::uuid(1)->assert('eb3115e5-bd16-4939-ab12-2b95745a30f3');
// → "eb3115e5-bd16-4939-ab12-2b95745a30f3" must be a UUID v1
v::uuid(4)->assert('eb3115e5-bd16-4939-ab12-2b95745a30f3');
// Validation passes successfully
v::uuid(8)->assert('00112233-4455-8677-8899-aabbccddeeff');
// Validation passes successfully
v::uuid(4)->assert(\Ramsey\Uuid\Uuid::fromString('eb3115e5-bd16-4939-ab12-2b95745a30f3'));
// Validation passes successfully
```
## Templates
### `Uuid::TEMPLATE_STANDARD`
| Mode | Template |
| ---------: | :----------------------------- |
| `default` | {{subject}} must be a UUID |
| `inverted` | {{subject}} must not be a UUID |
### `Uuid::TEMPLATE_VERSION`
| Mode | Template |
| ---------: | :--------------------------------------------------- |
| `default` | {{subject}} must be a UUID v{{version&#124;raw}} |
| `inverted` | {{subject}} must not be a UUID v{{version&#124;raw}} |
## Template placeholders
| Placeholder | Description |
| ----------- | ---------------------------------------------------------------- |
| `subject` | The validated input or the custom validator name (if specified). |
| `version` | The version of the expected UUID. |
## Categorization
- Strings
## Changelog
| Version | Description |
| ------: | :--------------------- |
| 3.0.0 | Templates changed |
| 3.0.0 | Requires `ramsey/uuid` |
| 2.0.0 | Created |
## See Also
- [Base](Base.md)
- [Decimal](Decimal.md)
- [Digit](Digit.md)