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items

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.

Returns an Iterable view of the current Set

public function items(): Iterable<Tv>;

The Iterable returned is one that produces the values from the current Set.

Returns​

Examples​

This example shows that items() returns an Iterable view of the Set. The Iterable will produce the values of the Set at the time it's iterated.

<<__EntryPoint>>
function basic_usage_main(): void {
  $s = Set {'red', 'green', 'blue', 'yellow'};

  // Get an Iterable view of the Set
  $iterable = $s->items();

  // Add another color to the original Set $s
  $s->add('purple');

  // Print each color using $iterable
  foreach ($iterable as $color) {
    echo $color."\n";
  }
}

// This wouldn't work because the Iterable interface is read-only:
// $iterable->add('orange');