HH\Set::slice

Returns a subset of the current Set starting from a given key up to, but not including, the element at the provided length from the starting key

public function slice(
  int $start,
  int $len,
): Set<Tv>;

$start is 0-based. $len is 1-based. So slice(0, 2) would return the elements at key 0 and 1.

The returned Set will always be a proper subset of the current Set.

Parameters

  • int $start - The starting value in the current Set for the returned Set.
  • int $len - The length of the returned Set.

Return Values

  • Set<Tv> - A Set that is a proper subset of the current Set starting at $start up to but not including the element $start + $len.