HH\Vector::toKeysArray

Returns an array whose values are the keys from the current Vector

public function toKeysArray(): varray<int>;

Returns

Examples

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

$keys_array = $v->toKeysArray();

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