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bd48bdcda4
Introduces a Markdown linter for checking the Changelog format. "See Also" was transformed into a section to make it easier to handle it with the `Content` class. The "Related" linter was simplified to reflect that change too. An additional "alignment" parameter was added to markdown table generators, allowing the padding and headers to be explicitly marked with a specific left (-1), middle (0) or right(1) alignment. Existing files were fixed using the `fix` option after the changes.
82 lines
2.1 KiB
Markdown
82 lines
2.1 KiB
Markdown
<!--
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SPDX-FileCopyrightText: (c) Respect Project Contributors
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SPDX-License-Identifier: MIT
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-->
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# Key
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- `Key(string|int $key, Validator $validator)`
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Validates the value of an array against a given validator.
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```php
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v::key('name', v::stringType())->assert(['name' => 'The Respect Panda']);
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// Validation passes successfully
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v::key('email', v::email())->assert(['email' => 'therespectpanda@gmail.com']);
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// Validation passes successfully
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v::key('age', v::intVal())->assert([]);
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// → `.age` must be present
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```
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You can also use `Key` to validate nested arrays:
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```php
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v::key(
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'payment_details',
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v::key('credit_card', v::creditCard())
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)->assert([
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'payment_details' => [
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'credit_card' => '5376 7473 9720 8720',
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],
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]);
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// Validation passes successfully
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```
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The name of this validator is automatically set to the key name.
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```php
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v::key('email', v::email())->assert([]);
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// → `.email` must be present
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v::key('email', v::email())->assert(['email' => 'not email']);
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// → `.email` must be a valid email address
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```
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## Note
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- To validate if a key exists, use [KeyExists](KeyExists.md) instead.
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- To validate an array against a given validator if the key exists, use [KeyOptional](KeyOptional.md) instead.
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## Templates
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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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- Arrays
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- Nesting
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- Structures
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## Changelog
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| Version | Description |
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| ------: | :------------------------------------------------------------------- |
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| 3.0.0 | Split by [KeyExists](KeyExists.md) and [KeyOptional](KeyOptional.md) |
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| 0.3.9 | Created |
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## See Also
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- [ArrayVal](ArrayVal.md)
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- [Each](Each.md)
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- [KeyExists](KeyExists.md)
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- [KeyOptional](KeyOptional.md)
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- [KeySet](KeySet.md)
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- [Property](Property.md)
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- [PropertyExists](PropertyExists.md)
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- [PropertyOptional](PropertyOptional.md)
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