GetAbstractConstantNames

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

( excerpt from http://php.net/manual/en/reflectionclass.getabstractconstantnames.php )

public function getAbstractConstantNames(): darray<string>;

Returns an array containing the names of abstract constants as both keys and values.

Returns

• array<string, - string>