Get

:::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 value at the specified key in the current collection

public function get(
  Tk $k,
): ?Tv;

If the key is not present, null is returned. If you would rather have an exception thrown when a key is not present, then use at().

Parameters

• Tk $k - the key from which to retrieve the value.

Returns

• ?Tv - The value at the specified key; or null if the key does not exist.