HH\Set::toMap

Returns a Map based on the values of the current Set.

Description

public function toMap(): Map<mixed,Tv>

Returns a Map based on the values of the current Set.

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

Return Values

  • Map<mixed,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

<?hh

namespace Hack\UserDocumentation\API\Examples\Set\ToMap;

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

$map = $s->toMap();

var_dump($map instanceof \HH\Map);
var_dump($map);
Output
bool(true)
object(HH\Map)#2 (4) {
  ["red"]=>
  string(3) "red"
  ["green"]=>
  string(5) "green"
  ["blue"]=>
  string(4) "blue"
  ["yellow"]=>
  string(6) "yellow"
}