DocumentationHackReferenceClassHH\VectortoImmMap

HH\Vector::toImmMap

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);

Output

bool(true)
object(HH\ImmVector)#3 (4) {
  [0]=>
  int(0)
  [1]=>
  int(1)
  [2]=>
  int(2)
  [3]=>
  int(3)
}
object(HH\ImmMap)#2 (4) {
  [0]=>
  string(3) "red"
  [1]=>
  string(5) "green"
  [2]=>
  string(4) "blue"
  [3]=>
  string(6) "yellow"
}