HH\Set::toImmMap
Returns an immutable map (ImmMap
) based on the values of the current
Set
public function toImmMap(): ImmMap<arraykey, Tv>;
Each key of the Map
will be the same as its value.
Returns
ImmMap<arraykey, Tv>
- anImmMap
that that contains the values of the currentSet
, with each key of the Map being the same as its value.
Examples
$s = Set {'red', 'green', 'blue', 'yellow'};
$imm_map = $s->toImmMap();
var_dump($imm_map is \HH\ImmMap<_, _>);
var_dump($imm_map);
bool(true)
object(HH\ImmMap)#2 (4) {
["red"]=>
string(3) "red"
["green"]=>
string(5) "green"
["blue"]=>
string(4) "blue"
["yellow"]=>
string(6) "yellow"
}