ToMap

:::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 a Map based on the values of the current Set

public function toMap(): Map<arraykey, Tv>;

Each key of the Map will be the same as its value.

Returns

• Map<arraykey,Tv> - a Map that that contains the values of the current Set, with each key of the Map being the same as its value.

Examples

$s = Set {'red', 'green', 'blue', 'yellow'};

$map = $s->toMap();

\var_dump($map is \HH\Map<_, _>);
\var_dump($map);