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toDArray

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 a darray built from the values from this Set, darray[val1 => val1, val2 => val2, ...]

public function toDArray(): darray<Tv, Tv>;

This maintains set-like semantics in darray[] land: O(1) membership test with array_has_key($a['key']) and iteration with foreach($a as $member).

Returns​

  • darray

Examples​

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

$array = $s->toDArray();

\var_dump(\HH\is_any_array($array));
\var_dump($array);