More Attribute Usage¶

<?php

#[MyAttribute]
class x {}

#[MyAttribute]
enum e {}

#[MyAttribute]
interface i {}

#[MyAttribute]
trait t {}

// ===================

#[MyFunctionAttribute]
function foo() {}

$c = #[MyFunctionAttribute] function () {};

$f = #[MyFunctionAttribute] fn () => 1;

PHP attributes are for classes, but also for enums, traits and interfaces. With ::TARGET_CLASS.

PHP attributes are for functions, and also for closures and arrow functions (but not for methods). With ::TARGET_FUNCTION.

Beware of the position of the attribute with closures and arrow functions, though.

See Also¶

Declaring Attribute Classes
Attributes for all [Try me]

PHP Features¶

Last updated: 14 July 2026