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<?php #[Attribute(Attribute::TARGET_CLASS_CONSTANT)] class TestAttribute { public function __construct(public string $value) { } } enum TestNum { #[TestAttribute('alpha value')] case ALPHA; #[TestAttribute('beta value')] case BETA; } var_dump((new \ReflectionClassConstant(TestNum::class, 'ALPHA'))->getAttributes(TestAttribute::class)[0]->newInstance());
Output for git.master_jit, git.master
object(TestAttribute)#1 (1) { ["value"]=> string(11) "alpha value" }

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