Array Mark Legacy - Hhvm

:::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

namespace HH;

function array_mark_legacy<T>(
  T $in,
  bool $recursive = false,
): T;

Parameters

T $in
bool $recursive = false

Returns