HH\Set::fromArrays

Returns a Set containing all the values from the specified array(s)

Description

public static function fromArrays(
  ...$argv,
): Set<Tv>

Parameters

  • ...$argv

Return Values

Examples

This example shows that duplicate values in the input arrays only appear once in the final Set:

<?hh

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

$s = Set::fromArrays(
  array('red'),
  array('green', 'blue'),
  array('yellow', 'red'), // Duplicate 'red' will be ignored
);

var_dump($s);
Output
object(HH\Set)#1 (4) {
  string(3) "red"
  string(5) "green"
  string(4) "blue"
  string(6) "yellow"
}