HH\Set::toKeysArray

Returns an array containing the values from the current Set

public function toKeysArray(): varray<Tv>;

Sets don't have keys. So this method just returns the values.

This method is interchangeable with toValuesArray().

Returns

  • varray<Tv> - an integer-indexed array containing the values from the current Set.

Examples

This example shows that toKeysArray is the same as toValuesArray because Sets don't have keys:

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

$keys_array = $s->toKeysArray();

var_dump($keys_array === $s->toValuesArray());
var_dump($keys_array);
Output
bool(true)
array(4) {
  [0]=>
  string(3) "red"
  [1]=>
  string(5) "green"
  [2]=>
  string(4) "blue"
  [3]=>
  string(6) "yellow"
}