GetAppendItemFormat

:::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. :::

public function getAppendItemFormat(
  int $field,
): string;

Parameters

• int $field - Pattern field (see constants)

Returns

• string - - Append item format for the given pattern field