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50 lines
789 B
Markdown
50 lines
789 B
Markdown
---
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date: 20201110
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id: 046ba725-37b9-4aca-837c-5d0cda679cc2
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title: PHP Attributes
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---
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# Description
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Introduced in [PHP 8.0](20201109133834-php_8_0). Attributes[^1] are a
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way to add metadata to classes. Stitcher[^2] has an article that goes in
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depth.
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# Syntax
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``` php
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use App\Attributes\ExampleAttribute;
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#[ExampleAttribute]
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class Foo
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{
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#[ExampleAttribute]
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public const FOO = 'foo';
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#[ExampleAttribute]
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public $x;
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#[ExampleAttribute]
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public function foo(#[ExampleAttribute] $bar) { }
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}
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```
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``` php
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#[Attribute]
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class ExampleAttribute
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{
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public $value;
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public function __construct($value)
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{
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$this->value = $value;
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}
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}
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```
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# Footnotes
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[^1]: <https://wiki.php.net/rfc/attributes>
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[^2]: <https://stitcher.io/blog/attributes-in-php-8>
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