TakeWhile - Hhvm — ContextQMD

:::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. :::

Hack

public function takeWhile(
  (function(Tv): bool) $fn,
): Iterable<Tv>;

Parameters

(function(Tv): bool) $fn

Returns

Iterable<Tv>