SetAll

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

For every element in the provided Traversable, stores a value into the current Vector associated with each key, overwriting the previous value associated with the key

public function setAll(
  ?KeyedTraversable<int, Tv> $iterable,
): Vector<Tv>;

If a key is not present the current Vector that is present in the Traversable, an exception is thrown. If you want to add a value even if a key is not present, use addAll().

Future changes made to the current Vector ARE reflected in the returned Vector, and vice-versa.

Parameters

• ?KeyedTraversable<int,Tv> $iterable

Returns

• Vector<Tv> - Returns itself.

Examples

This example shows how setAll() can be used with any KeyedTraversable:

$v = Vector {'red', 'green', 'blue', 'yellow'};

// Set the elements at 0 and 1
$v->setAll(Vector {'foo', 'bar'});
\var_dump($v);

// Set the elements at 2 and 3
$v->setAll(Map {
  2 => 'baz',
  3 => 'qux',
});
\var_dump($v);