ToImmMap

:::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 an immutable, integer-keyed map (ImmMap) based on the values of the current Vector

public function toImmMap(): ImmMap<int, Tv>;

Returns

• ImmMap<int,Tv> - An ImmMap that has the integer keys and associated values of the current Vector.

Examples

$v = Vector {'red', 'green', 'blue', 'yellow'};

$imm_map = $v->toImmMap();

\var_dump($imm_map is \HH\ImmMap<_, _>);
\var_dump($imm_map->keys());
\var_dump($imm_map);