Fail

:::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. :::

Notify the condition variable of failure and set the exception

final public function fail(
  Exception $exception,
): void;

Parameters

• Exception $exception

Returns

• void