GetBestPattern

:::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. :::

Returns the best pattern matching the input skeleton

public function getBestPattern(
  string $skeleton,
): string;

It is guaranteed to have all of the fields in the skeleton.

Parameters

• string $skeleton - The skeleton is a pattern containing only the variable fields. For example, "MMMdd" and "mmhh" are skeletons.

Returns

• string - - The best pattern found for the given skeleton